better system messages, display name relocation

app/Http/Controllers/DynamicController.php

@@ -56,7 +56,12 @@ class DynamicController extends Controller
             'ledgers.media',
             'participants' => fn($query) => $query->withPivot('display_name'),
             'chat.messages.user',
-            'chat.messages.media'
+            'chat.messages.media',
+            'chat.messages.subject' => function ($morphTo) {
+                $morphTo->morphWith([
+                    \App\Models\Mutation::class => ['ledger'],
+                ]);
+            }
         ]);
 
         $isOwner = $dynamic->participants()

app/Http/Controllers/DynamicInvitationController.php

@@ -116,7 +116,7 @@ class DynamicInvitationController extends Controller
             // Log to Dynamic chat activity log!
             $dynamic->chat->messages()->create([
                 'user_id' => null,
-                'content' => "{$request->user()->name} joined the Dynamic as a " . strtoupper($invitation->role),
+                'content' => "<user:{$request->user()->id}> joined the Dynamic as a " . strtoupper($invitation->role),
                 'subject_id' => $request->user()->id,
                 'subject_type' => \App\Models\User::class,
             ]);

app/Http/Controllers/LedgerController.php

@@ -74,7 +74,12 @@ class LedgerController extends Controller
             'mutations.user',
             'mutations.media',
             'mutations.chat.messages.user',
-            'mutations.chat.messages.media'
+            'mutations.chat.messages.media',
+            'mutations.chat.messages.subject' => function ($morphTo) {
+                $morphTo->morphWith([
+                    \App\Models\Mutation::class => ['ledger'],
+                ]);
+            }
         ]);
 
         $isOwner = $dynamic->participants()

app/Http/Controllers/MutationController.php

@@ -67,30 +67,6 @@ class MutationController extends Controller
             return $mutation;
         });
 
-        // Log to Mutation and Dynamic chats
-        $user = $request->user();
-
-        $mutationMsg = $mutation->chat->messages()->create([
-            'user_id' => $user->id,
-            'content' => $status === 'approved'
-                ? "System: Entry was created by {$user->name}."
-                : "System: Suggestion was created by {$user->name}.",
-        ]);
-        broadcast(new \App\Events\MessageSent($mutationMsg));
-
-        if ($status === 'approved') {
-            $dynamicMsg = $dynamic->chat->messages()->create([
-                'user_id' => $user->id,
-                'content' => "System: {$user->name} added entry \"{$mutation->description}\" for " . ($mutation->amount >= 0 ? '+' : '') . "{$mutation->amount} points on \"{$ledger->name}\" ledger.",
-            ]);
-        } else {
-            $dynamicMsg = $dynamic->chat->messages()->create([
-                'user_id' => $user->id,
-                'content' => "System: {$user->name} suggested \"{$mutation->description}\" for " . ($mutation->amount >= 0 ? '+' : '') . "{$mutation->amount} points on \"{$ledger->name}\" ledger.",
-            ]);
-        }
-        broadcast(new \App\Events\MessageSent($dynamicMsg));
-
         // Broadcast the real-time creation event!
         broadcast(new \App\Events\MutationCreated($mutation));
 
@@ -151,20 +127,26 @@ class MutationController extends Controller
         $statusText = strtoupper($newStatus);
 
         $mutationMsg = $mutation->chat->messages()->create([
-            'user_id' => $user->id,
-            'content' => "System: Suggestion was {$statusText} by {$user->name}.",
+            'user_id' => null,
+            'content' => "Suggestion was {$statusText} by <user:{$user->id}>.",
+            'subject_id' => $mutation->id,
+            'subject_type' => Mutation::class,
         ]);
         broadcast(new \App\Events\MessageSent($mutationMsg));
 
         if ($newStatus === 'approved') {
             $dynamicMsg = $dynamic->chat->messages()->create([
-                'user_id' => $user->id,
-                'content' => "System: {$user->name} APPROVED the suggestion \"{$mutation->description}\" for " . ($mutation->amount >= 0 ? '+' : '') . "{$mutation->amount} points on \"{$ledger->name}\" ledger.",
+                'user_id' => null,
+                'content' => "<user:{$user->id}> APPROVED the suggestion \"{$mutation->description}\" for " . ($mutation->amount >= 0 ? '+' : '') . "{$mutation->amount} points on \"{$ledger->name}\" ledger.",
+                'subject_id' => $mutation->id,
+                'subject_type' => Mutation::class,
             ]);
         } else {
             $dynamicMsg = $dynamic->chat->messages()->create([
-                'user_id' => $user->id,
-                'content' => "System: {$user->name} REJECTED the suggestion \"{$mutation->description}\" on \"{$ledger->name}\" ledger.",
+                'user_id' => null,
+                'content' => "<user:{$user->id}> REJECTED the suggestion \"{$mutation->description}\" on \"{$ledger->name}\" ledger.",
+                'subject_id' => $mutation->id,
+                'subject_type' => Mutation::class,
             ]);
         }
         broadcast(new \App\Events\MessageSent($dynamicMsg));

app/Http/Controllers/ParticipantController.php

@@ -3,10 +3,40 @@
 namespace App\Http\Controllers;
 
 use App\Models\Dynamic;
+use App\Models\User;
 use Illuminate\Http\Request;
+use Inertia\Inertia;
 
 class ParticipantController extends Controller
 {
+    public function show(Request $request, Dynamic $dynamic, User $user)
+    {
+        // Ensure both the authenticated user and the target user are in the dynamic
+        if (!$dynamic->participants()->where('user_id', $request->user()->id)->exists()) {
+            abort(403);
+        }
+
+        $participant = $dynamic->participants()->where('user_id', $user->id)->firstOrFail();
+
+        $mutations = $user->mutations()
+            ->whereHas('ledger', fn($query) => $query->where('dynamic_id', $dynamic->id))
+            ->with('ledger')
+            ->latest('id')
+            ->take(10)
+            ->get();
+
+        return Inertia::render('Participants/Show', [
+            'dynamic' => $dynamic,
+            'participant' => [
+                'id' => $user->id,
+                'name' => $user->name,
+                'display_name' => $participant->pivot->display_name,
+                'role' => $participant->pivot->role,
+            ],
+            'mutations' => $mutations,
+        ]);
+    }
+
     public function update(Request $request, Dynamic $dynamic)
     {
         $request->validate([

app/Http/Controllers/Settings/ProfileController.php

@@ -19,9 +19,14 @@ class ProfileController extends Controller
      */
     public function edit(Request $request): Response
     {
+        $dynamics = $request->user()->dynamics()
+            ->withPivot('display_name')
+            ->get();
+
         return Inertia::render('settings/Profile', [
             'mustVerifyEmail' => $request->user() instanceof MustVerifyEmail,
             'status' => $request->session()->get('status'),
+            'dynamics' => $dynamics,
         ]);
     }
 

app/Models/Mutation.php

@@ -46,6 +46,39 @@ class Mutation extends Model
     {
         static::created(function (Mutation $mutation) {
             $mutation->chat()->create([]);
+
+            // Create system messages automatically!
+            $user = $mutation->user;
+            $ledger = $mutation->ledger;
+            $dynamic = $ledger->dynamic;
+            $status = $mutation->status;
+
+            $mutationMsg = $mutation->chat->messages()->create([
+                'user_id' => null,
+                'content' => $status === 'approved'
+                    ? "Entry was created by <user:{$user->id}>."
+                    : "Suggestion was created by <user:{$user->id}>.",
+                'subject_id' => $mutation->id,
+                'subject_type' => Mutation::class,
+            ]);
+            broadcast(new \App\Events\MessageSent($mutationMsg));
+
+            if ($status === 'approved') {
+                $dynamicMsg = $dynamic->chat->messages()->create([
+                    'user_id' => null,
+                    'content' => "<user:{$user->id}> added entry \"{$mutation->description}\" for " . ($mutation->amount >= 0 ? '+' : '') . "{$mutation->amount} points on \"{$ledger->name}\" ledger.",
+                    'subject_id' => $mutation->id,
+                    'subject_type' => Mutation::class,
+                ]);
+            } else {
+                $dynamicMsg = $dynamic->chat->messages()->create([
+                    'user_id' => null,
+                    'content' => "<user:{$user->id}> suggested \"{$mutation->description}\" for " . ($mutation->amount >= 0 ? '+' : '') . "{$mutation->amount} points on \"{$ledger->name}\" ledger.",
+                    'subject_id' => $mutation->id,
+                    'subject_type' => Mutation::class,
+                ]);
+            }
+            broadcast(new \App\Events\MessageSent($dynamicMsg));
         });
     }
 }

app/Services/ActivityService.php

@@ -52,20 +52,35 @@ class ActivityService
     {
         if ($entity instanceof Dynamic) {
             $chatId = $entity->chat->id;
+            $dynamic = $entity;
         } elseif ($entity instanceof Ledger) {
-            $chatId = $entity->dynamic->chat->id;
+            $dynamic = $entity->dynamic;
+            $chatId = $dynamic->chat->id;
         } else {
             return [];
         }
 
+        $participants = $dynamic->participants()->withPivot('display_name')->get();
+        $participantsMap = $participants->reduce(function ($acc, $p) {
+            $acc[$p->id] = $p->pivot->display_name ?? $p->name;
+            return $acc;
+        }, []);
+
         $messages = Message::where('chat_id', $chatId)
             ->with(['user', 'subject'])
             ->latest()
             ->get();
 
-        return $messages->map(function ($message) {
+        return $messages->map(function ($message) use ($participantsMap) {
             $messageData = $message->toArray();
             $messageData['url'] = $this->getUrlForMessage($message);
+
+            // Resolve <user:id> placeholders to actual names/display names
+            $messageData['content'] = preg_replace_callback('/<user:(\d+)>/', function ($matches) use ($participantsMap) {
+                $userId = $matches[1];
+                return $participantsMap[$userId] ?? "User #{$userId}";
+            }, $message->content);
+
             return $messageData;
         })->all();
     }
@@ -116,7 +131,7 @@ class ActivityService
                 'url' => $url,
                 'unread_count' => count($unread),
                 'context_activities' => $context,
-                'new_activities' => $unread,
+                'new_activities' => array_reverse($unread),
             ];
         }
     }

database/seeders/DatabaseSeeder.php

@@ -212,7 +212,7 @@ class DatabaseSeeder extends Seeder
             // Seed Etiquette Mutations
             Mutation::create([
                 'ledger_id' => $etiquetteLedger->id,
-                'user_id' => $alice->id,
+                'user_id' => $bob->id,
                 'type' => 'penalty',
                 'amount' => 5,
                 'description' => 'Interrupted Domina Alice during daily instructions',
@@ -221,7 +221,7 @@ class DatabaseSeeder extends Seeder
 
             Mutation::create([
                 'ledger_id' => $etiquetteLedger->id,
-                'user_id' => $alice->id,
+                'user_id' => $bob->id,
                 'type' => 'penalty',
                 'amount' => 10,
                 'description' => 'Forgot correct posture during morning roll call',
@@ -230,7 +230,7 @@ class DatabaseSeeder extends Seeder
 
             Mutation::create([
                 'ledger_id' => $etiquetteLedger->id,
-                'user_id' => $alice->id,
+                'user_id' => $bob->id,
                 'type' => 'penalty',
                 'amount' => 5,
                 'description' => 'Spoke out of turn in general chat',

resources/css/components/chat.css

@@ -208,3 +208,4 @@
         }
     }
 }
+.c-chat__user-link { @apply font-semibold text-blue-500 hover:underline; }

resources/js/components/Chat.vue

@@ -5,23 +5,39 @@ import { useEcho, echoIsConfigured, configureEcho } from '@laravel/echo-vue';
 import { route } from 'ziggy-js';
 import { Paperclip, Info } from '@lucide/vue';
 
-const props = defineProps<{
-    chat: {
-        id: number;
-        messages: Array<{
+const props = withDefaults(
+    defineProps<{
+        chat: {
             id: number;
-            user: { id: number; name: string };
-            content: string;
-            created_at: string;
-            media?: Array<{
+            messages: Array<{
                 id: number;
-                url: string;
-                file_name: string;
-                mime_type: string;
+                user: { id: number; name: string } | null;
+                content: string;
+                created_at: string;
+                subject_id?: number | null;
+                subject_type?: string | null;
+                subject?: any;
+                media?: Array<{
+                    id: number;
+                    url: string;
+                    file_name: string;
+                    mime_type: string;
+                }>;
             }>;
+        };
+        participants?: Array<{
+            id: number;
+            name: string;
+            pivot?: {
+                display_name: string | null;
+            } | null;
         }>;
-    };
-}>();
+        dynamicId: number;
+    }>(),
+    {
+        participants: () => [],
+    }
+);
 
 if (!echoIsConfigured()) {
     configureEcho({
@@ -50,6 +66,83 @@ useEcho(`chats.${props.chat.id}`, 'MessageSent', (e: any) => {
     props.chat.messages.push(e.message);
 });
 
+const participantsById = computed(() => {
+    return props.participants.reduce(
+        (acc, p) => {
+            acc[p.id] = p;
+            return acc;
+        },
+        {} as Record<
+            number,
+            {
+                id: number;
+                name: string;
+                pivot?: { display_name: string | null } | null;
+            }
+        >,
+    );
+});
+
+function parseMessageContent(message: {
+    content: string;
+    subject_id?: number | null;
+    subject_type?: string | null;
+    subject?: any;
+}) {
+    let content = message.content;
+
+    // 1. Replace <user:id> placeholders with links to their dynamic profile
+    const userRegex = /<user:(\d+)>/g;
+    content = content.replace(userRegex, (match, userId) => {
+        const user = participantsById.value[Number(userId)];
+        if (user) {
+            const url = route('dynamics.users.show', [props.dynamicId, Number(userId)]);
+            return `<a href="${url}" class="c-chat__user-link font-semibold text-blue-500 hover:underline">${
+                user.pivot?.display_name ?? user.name
+            }</a>`;
+        }
+        return `User #${userId}`;
+    });
+
+    // 2. Link subjects if found in the text
+    if (message.subject_id && message.subject_type) {
+        if (
+            message.subject_type === 'App\\Models\\Mutation' ||
+            message.subject_type === 'App\\Models\\Ledger'
+        ) {
+            const ledgerId =
+                message.subject_type === 'App\\Models\\Mutation'
+                    ? message.subject?.ledger_id
+                    : message.subject?.id;
+
+            const ledgerName =
+                message.subject_type === 'App\\Models\\Mutation'
+                    ? message.subject?.ledger?.name
+                    : message.subject?.name;
+
+            if (ledgerId && ledgerName) {
+                const ledgerUrl = route('dynamics.ledgers.show', [
+                    props.dynamicId,
+                    ledgerId,
+                ]);
+
+                const escapedName = ledgerName.replace(
+                    /[-\/\\^$*+?.()|[\]{}]/g,
+                    '\\$&',
+                );
+                
+                const nameRegex = new RegExp(`"${escapedName}"`, 'g');
+                content = content.replace(
+                    nameRegex,
+                    `"<a href="${ledgerUrl}" class="c-chat__subject-link font-semibold text-blue-500 hover:underline">${ledgerName}</a>"`,
+                );
+            }
+        }
+    }
+
+    return content;
+}
+
 function handleFileChange(event: Event) {
     const files = (event.target as HTMLInputElement).files;
     if (files) {
@@ -65,7 +158,10 @@ function removeFile(index: number) {
 
 const currentUser = computed(() => usePage().props.auth?.user);
 
-function isOwnMessage(messageUserId: number): boolean {
+function isOwnMessage(messageUserId: number | null): boolean {
+    if (messageUserId === null) {
+        return false;
+    }
     return currentUser.value && currentUser.value.id === messageUserId;
 }
 
@@ -107,17 +203,16 @@ function closeLightbox() {
                 :class="[
                     'c-chat__message',
                     {
-                        'c-chat__message--system':
-                            message.user.id === 0,
-                        'c-chat__message--own': isOwnMessage(message.user.id),
-                        'c-chat__message--other': !isOwnMessage(
-                            message.user.id,
+                        'c-chat__message--system': message.user === null,
+                        'c-chat__message--own': isOwnMessage(message.user?.id),
+                        'c-chat__message--other': message.user !== null && !isOwnMessage(
+                            message.user?.id,
                         ),
                     },
                 ]"
             >
                 <!-- Standard User Chat Message -->
-                <template v-if="!message.content.startsWith('System:')">
+                <template v-if="message.user">
                     <div class="c-chat__message-header">
                         <span class="c-chat__message-author">{{
                             message.user.name
@@ -166,9 +261,10 @@ function closeLightbox() {
                 <template v-else>
                     <div class="c-chat__system-inner">
                         <Info class="c-chat__system-icon" />
-                        <span class="c-chat__system-text">
-                            {{ message.content.replace(/^System:\s*/, '') }}
-                        </span>
+                        <span
+                            class="c-chat__system-text"
+                            v-html="parseMessageContent(message)"
+                        ></span>
                         <span class="c-chat__system-time">
                             {{
                                 new Date(message.created_at).toLocaleTimeString(

resources/js/components/DisplayNameForm.vue

@@ -1,113 +0,0 @@
-<script setup lang="ts">
-import { useForm } from '@inertiajs/vue3';
-import { route } from 'ziggy-js';
-
-const props = defineProps<{
-    dynamicId: number;
-    participant: {
-        id: number;
-        name: string;
-        display_name: string | null;
-    };
-}>();
-
-const form = useForm({
-    display_name: props.participant.display_name ?? '',
-});
-
-function submit() {
-    form.put(route('dynamics.participant.update', props.dynamicId));
-}
-</script>
-
-<template>
-    <div class="c-display-name-form">
-        <h4 class="c-display-name-form__title">
-            Display Name for {{ participant.name }}
-        </h4>
-        <form @submit.prevent="submit" class="c-display-name-form__form">
-            <div class="c-display-name-form__field">
-                <label
-                    for="display_name"
-                    class="c-display-name-form__label"
-                >
-                    Dynamic-specific Display Name
-                </label>
-                <input
-                    v-model="form.display_name"
-                    id="display_name"
-                    type="text"
-                    class="c-display-name-form__input"
-                />
-                <div
-                    v-if="form.errors.display_name"
-                    class="c-display-name-form__error"
-                >
-                    {{ form.errors.display_name }}
-                </div>
-            </div>
-
-            <div class="c-display-name-form__actions">
-                <button
-                    type="submit"
-                    :disabled="form.processing"
-                    class="c-display-name-form__submit-btn"
-                >
-                    Save
-                </button>
-            </div>
-        </form>
-    </div>
-</template>
-
-<style scoped>
-@reference '../../css/app.css';
-
-.c-display-name-form {
-    @apply mt-8;
-}
-
-.c-display-name-form__title {
-    @apply text-lg font-medium;
-    color: var(--foreground);
-}
-
-.c-display-name-form__form {
-    @apply mt-4 space-y-4;
-}
-
-.c-display-name-form__field {
-    @apply block;
-}
-
-.c-display-name-form__label {
-    @apply block text-sm font-medium;
-    color: var(--foreground);
-}
-
-.c-display-name-form__input {
-    @apply mt-1 block w-full rounded-md border shadow-sm focus:border-indigo-500 focus:ring-indigo-500;
-    border-color: var(--border);
-    background-color: var(--background);
-    color: var(--foreground);
-}
-
-.c-display-name-form__error {
-    @apply text-sm;
-    color: var(--destructive);
-}
-
-.c-display-name-form__actions {
-    @apply flex items-center gap-4;
-}
-
-.c-display-name-form__submit-btn {
-    @apply inline-flex items-center rounded-md border border-transparent bg-gray-800 px-4 py-2 text-xs font-semibold tracking-widest text-white uppercase transition duration-150 ease-in-out hover:bg-gray-700 focus:bg-gray-700 focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2 focus:outline-none active:bg-gray-900;
-    background-color: var(--primary);
-    color: var(--primary-foreground);
-
-    &:hover {
-        opacity: 0.9;
-    }
-}
-</style>

resources/js/components/DynamicDisplayNameItem.vue

@@ -0,0 +1,47 @@
+<script setup lang="ts">
+import { useForm } from '@inertiajs/vue3';
+import { route } from 'ziggy-js';
+import { Input } from '@/components/ui/input';
+import { Button } from '@/components/ui/button';
+import InputError from '@/components/InputError.vue';
+
+const props = defineProps<{
+    dynamic: {
+        id: number;
+        name: string;
+        pivot: {
+            display_name: string | null;
+        };
+    };
+}>();
+
+const form = useForm({
+    display_name: props.dynamic.pivot?.display_name ?? '',
+});
+
+function submit() {
+    form.put(route('dynamics.participant.update', props.dynamic.id), {
+        preserveScroll: true,
+    });
+}
+</script>
+
+<template>
+    <form @submit.prevent="submit" class="flex flex-col sm:flex-row items-start sm:items-center gap-4 p-4 border rounded-lg bg-card text-card-foreground">
+        <div class="flex-1 w-full">
+            <div class="font-medium text-sm mb-1">{{ dynamic.name }}</div>
+            <Input
+                v-model="form.display_name"
+                class="w-full"
+                placeholder="Enter custom display name"
+                required
+            />
+            <InputError class="mt-1" :message="form.errors.display_name" />
+        </div>
+        <div class="sm:self-end">
+            <Button type="submit" size="sm" :disabled="form.processing">
+                Save
+            </Button>
+        </div>
+    </form>
+</template>

resources/js/components/MutationList.vue

@@ -174,7 +174,7 @@ function getAmountClass(amount: number): string {
                     </button>
                 </div>
 
-                <Chat :chat="mutation.chat" />
+                <Chat :chat="mutation.chat" :dynamic-id="dynamicId" :participants="participants" />
             </li>
         </ul>
         <div v-if="mutations.length === 0" class="c-mutation-list__empty">

resources/js/pages/Dashboard.vue

@@ -107,11 +107,11 @@ function formatTime(isoString: string): string {
 
                         <!-- Unread Separator Line -->
                         <div
-                            v-if="entity.context_activities.length > 0"
+                            v-if="entity.new_activities.length > 0"
                             class="c-dashboard__divider"
                         >
                             <span class="c-dashboard__divider-text"
-                                >New Activity Below</span
+                                >NEW</span
                             >
                         </div>
 
@@ -129,7 +129,6 @@ function formatTime(isoString: string): string {
                                     <span class="c-dashboard__activity-time">
                                         {{ formatTime(activity.created_at) }}
                                     </span>
-                                    <span class="c-dashboard__new-badge">NEW</span>
                                 </div>
                                 <p class="c-dashboard__activity-desc">
                                     {{ activity.content }}

resources/js/pages/Dynamics/Show.vue

@@ -2,10 +2,8 @@
 import Chat from '@/components/Chat.vue';
 import ParticipantsList from '@/components/ParticipantsList.vue';
 import LedgerList from '@/components/LedgerList.vue';
-import DisplayNameForm from '@/components/DisplayNameForm.vue';
-import { Head, Link as InertiaLink, usePage } from '@inertiajs/vue3';
+import { Head, Link as InertiaLink } from '@inertiajs/vue3';
 import { route } from 'ziggy-js';
-import { computed } from 'vue';
 
 const props = defineProps<{
     dynamic: {
@@ -25,17 +23,6 @@ const props = defineProps<{
     isOwner: boolean;
 }>();
 
-const currentUser = computed(() => {
-    const page = usePage();
-    const authUser = page.props.auth.user;
-    const participant = props.dynamic.participants.find(p => p.id === authUser.id);
-    return {
-        id: authUser.id,
-        name: authUser.name,
-        display_name: participant?.pivot?.display_name ?? null,
-    };
-});
-
 
 const breadcrumbs = [
     {
@@ -71,7 +58,7 @@ const breadcrumbs = [
             </div>
 
             <!-- Dynamic Chat -->
-            <Chat :chat="dynamic.chat" />
+            <Chat :chat="dynamic.chat" :participants="dynamic.participants" :dynamic-id="dynamic.id" />
 
             <!-- Participants Component -->
             <ParticipantsList :participants="dynamic.participants" />
@@ -79,9 +66,6 @@ const breadcrumbs = [
             <!-- Ledgers List Component -->
             <LedgerList :dynamic-id="dynamic.id" :ledgers="dynamic.ledgers" />
 
-            <!-- Display Name Form -->
-            <DisplayNameForm :dynamic-id="dynamic.id" :participant="currentUser" />
-
             <div v-if="isOwner" class="mt-8 flex gap-4">
                 <InertiaLink :href="route('dynamics.invitations.create', dynamic.id)" class="c-dynamic-show__action-btn">
                     Invite User

resources/js/pages/Participants/Show.vue

@@ -0,0 +1,260 @@
+<script setup lang="ts">
+import { Head, Link as InertiaLink } from '@inertiajs/vue3';
+import { route } from 'ziggy-js';
+
+const props = defineProps<{
+    dynamic: {
+        id: number;
+        name: string;
+    };
+    participant: {
+        id: number;
+        name: string;
+        display_name: string | null;
+        role: string;
+    };
+    mutations: Array<{
+        id: number;
+        ledger_id: number;
+        ledger: {
+            id: number;
+            name: string;
+            alignment: string;
+        };
+        amount: number;
+        description: string;
+        status: string;
+        created_at: string;
+    }>;
+}>();
+
+const breadcrumbs = [
+    {
+        name: 'Dynamics',
+        href: route('dynamics.index'),
+    },
+    {
+        name: props.dynamic.name,
+        href: route('dynamics.show', props.dynamic.id),
+    },
+    {
+        name: props.participant.display_name ?? props.participant.name,
+        href: route('dynamics.users.show', [props.dynamic.id, props.participant.id]),
+    },
+];
+
+function getAmountClass(amount: number, alignment: string): string {
+    if (alignment === 'positive') {
+        return amount > 0
+            ? 'c-participant-show__activity-amount--positive'
+            : 'c-participant-show__activity-amount--negative';
+    }
+
+    if (alignment === 'negative') {
+        return amount < 0
+            ? 'c-participant-show__activity-amount--positive'
+            : 'c-participant-show__activity-amount--negative';
+    }
+
+    return 'c-participant-show__activity-amount--neutral';
+}
+</script>
+
+<template>
+    <Head :title="participant.display_name ?? participant.name" />
+
+    <div class="c-participant-show">
+        <div class="c-participant-show__container">
+            <!-- Header Card -->
+            <div class="c-participant-show__card">
+                <div class="c-participant-show__body">
+                    <div class="flex justify-between items-center">
+                        <div>
+                            <span class="c-participant-show__role-badge">
+                                {{ participant.role }}
+                            </span>
+                            <h3 class="c-participant-show__title mt-1">
+                                {{ participant.display_name ?? participant.name }}
+                            </h3>
+                            <p v-if="participant.display_name" class="c-participant-show__subtitle">
+                                Real Name: {{ participant.name }}
+                            </p>
+                        </div>
+                        <InertiaLink :href="route('dynamics.show', dynamic.id)" class="c-participant-show__back-btn">
+                            Back to Dynamic
+                        </InertiaLink>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Recent Activity Block -->
+            <div class="c-participant-show__activity mt-8">
+                <h4 class="c-participant-show__activity-title">Recent Activity</h4>
+                
+                <div v-if="mutations.length > 0" class="c-participant-show__activity-list mt-4">
+                    <div
+                        v-for="mutation in mutations"
+                        :key="mutation.id"
+                        class="c-participant-show__activity-item"
+                    >
+                        <div class="flex justify-between items-start">
+                            <div>
+                                <InertiaLink
+                                    :href="route('dynamics.ledgers.show', [dynamic.id, mutation.ledger_id])"
+                                    class="c-participant-show__activity-ledger"
+                                >
+                                    {{ mutation.ledger.name }}
+                                </InertiaLink>
+                                <p class="c-participant-show__activity-desc mt-1">
+                                    {{ mutation.description }}
+                                </p>
+                            </div>
+                            <div class="text-right">
+                                <span
+                                    :class="getAmountClass(mutation.amount, mutation.ledger.alignment)"
+                                    class="c-participant-show__activity-amount"
+                                >
+                                    {{ mutation.amount > 0 ? '+' : '' }}{{ mutation.amount }}
+                                </span>
+                                <div class="c-participant-show__activity-meta mt-1">
+                                    <span
+                                        :class="{
+                                            'c-participant-show__activity-status--pending': mutation.status === 'pending',
+                                            'c-participant-show__activity-status--approved': mutation.status === 'approved',
+                                            'c-participant-show__activity-status--rejected': mutation.status === 'rejected',
+                                        }"
+                                        class="c-participant-show__activity-status"
+                                    >
+                                        {{ mutation.status }}
+                                    </span>
+                                    <span class="c-participant-show__activity-time ml-2">
+                                        {{ new Date(mutation.created_at).toLocaleDateString() }}
+                                    </span>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                
+                <div v-else class="c-participant-show__empty mt-4">
+                    No recent activity found for this participant.
+                </div>
+            </div>
+        </div>
+    </div>
+</template>
+
+<style scoped>
+@reference "../../../css/app.css";
+
+.c-participant-show {
+    @apply py-12;
+}
+
+.c-participant-show__container {
+    @apply mx-auto max-w-7xl sm:px-6 lg:px-8;
+}
+
+.c-participant-show__card {
+    @apply overflow-hidden;
+    background-color: var(--card);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+}
+
+.c-participant-show__body {
+    @apply p-6;
+    color: var(--foreground);
+}
+
+.c-participant-show__role-badge {
+    @apply inline-flex items-center rounded-full px-2.5 py-0.5 text-xs font-semibold uppercase tracking-wider;
+    background-color: var(--primary);
+    color: var(--primary-foreground);
+    opacity: 0.8;
+}
+
+.c-participant-show__title {
+    @apply text-2xl font-bold;
+}
+
+.c-participant-show__subtitle {
+    @apply mt-1 text-sm;
+    color: var(--muted-foreground);
+}
+
+.c-participant-show__back-btn {
+    @apply inline-flex items-center rounded-md border border-transparent bg-gray-800 px-4 py-2 text-xs font-semibold tracking-widest text-white uppercase transition duration-150 ease-in-out hover:bg-gray-700 focus:bg-gray-700 focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2 focus:outline-none active:bg-gray-900 dark:bg-gray-200 dark:text-gray-800 dark:hover:bg-white dark:focus:bg-white dark:focus:ring-offset-gray-800 dark:active:bg-gray-300;
+}
+
+.c-participant-show__activity-title {
+    @apply text-lg font-medium;
+    color: var(--foreground);
+}
+
+.c-participant-show__activity-list {
+    @apply space-y-4;
+}
+
+.c-participant-show__activity-item {
+    @apply p-4;
+    background-color: var(--card);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+}
+
+.c-participant-show__activity-ledger {
+    @apply font-semibold hover:underline text-sm;
+    color: var(--primary);
+}
+
+.c-participant-show__activity-desc {
+    @apply text-sm;
+    color: var(--foreground);
+}
+
+.c-participant-show__activity-amount {
+    @apply font-bold text-sm;
+}
+
+.c-participant-show__activity-amount--positive {
+    @apply text-green-500;
+}
+
+.c-participant-show__activity-amount--negative {
+    @apply text-red-500;
+}
+
+.c-participant-show__activity-amount--neutral {
+    @apply text-neutral-500;
+}
+
+.c-participant-show__activity-meta {
+    @apply flex items-center justify-end text-xs;
+}
+
+.c-participant-show__activity-status {
+    @apply rounded px-1.5 py-0.5 text-[9px] font-medium tracking-wider uppercase;
+}
+
+.c-participant-show__activity-status--pending {
+    @apply bg-yellow-100 text-yellow-800 dark:bg-yellow-900/30 dark:text-yellow-400;
+}
+
+.c-participant-show__activity-status--approved {
+    @apply bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-400;
+}
+
+.c-participant-show__activity-status--rejected {
+    @apply bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400;
+}
+
+.c-participant-show__activity-time {
+    color: var(--muted-foreground);
+}
+
+.c-participant-show__empty {
+    @apply text-sm text-center py-8;
+    color: var(--muted-foreground);
+}
+</style>

resources/js/pages/settings/Profile.vue

@@ -6,6 +6,7 @@ import ProfileController from '@/actions/App/Http/Controllers/Settings/ProfileCo
 import DeleteUser from '@/components/DeleteUser.vue';
 import Heading from '@/components/Heading.vue';
 import InputError from '@/components/InputError.vue';
+import DynamicDisplayNameItem from '@/components/DynamicDisplayNameItem.vue';
 import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
@@ -23,6 +24,18 @@ defineOptions({
     },
 });
 
+defineProps<{
+    mustVerifyEmail: boolean;
+    status: string | null;
+    dynamics: Array<{
+        id: number;
+        name: string;
+        pivot: {
+            display_name: string | null;
+        };
+    }>;
+}>();
+
 const page = usePage();
 const user = computed(() => page.props.auth.user);
 </script>
@@ -99,6 +112,27 @@ const user = computed(() => page.props.auth.user);
                 >
             </div>
         </Form>
+
+        <!-- Dynamic-Specific Display Names Section -->
+        <div class="pt-8 border-t">
+            <Heading
+                variant="small"
+                title="Dynamic Display Names"
+                description="Customize your display name for each of your dynamics"
+            />
+            <div class="mt-6 space-y-4">
+                <div v-if="dynamics && dynamics.length > 0" class="space-y-4">
+                    <DynamicDisplayNameItem
+                        v-for="dyn in dynamics"
+                        :key="dyn.id"
+                        :dynamic="dyn"
+                    />
+                </div>
+                <p v-else class="text-sm text-muted-foreground">
+                    You are not a participant in any dynamics yet.
+                </p>
+            </div>
+        </div>
     </div>
 
     <DeleteUser />

routes/web.php

@@ -27,6 +27,7 @@ Route::middleware(['auth', 'verified'])->group(function () {
     Route::post('/chats/{chat}/messages', [MessageController::class, 'store'])->name('chats.messages.store');
 
     Route::put('/dynamics/{dynamic}/participant', [\App\Http\Controllers\ParticipantController::class, 'update'])->name('dynamics.participant.update');
+    Route::get('/dynamics/{dynamic}/users/{user}', [\App\Http\Controllers\ParticipantController::class, 'show'])->name('dynamics.users.show');
 });
 
 Route::get('/invitations/accept/{token}', [\App\Http\Controllers\DynamicInvitationController::class, 'accept'])

tests/Feature/InvitationTest.php

@@ -99,5 +99,5 @@ test('only the user with the specified email address can accept the link', funct
     // Verify system notification is added to Dynamic activity chat
     $chatMessages = $dynamic->chat->messages;
     expect($chatMessages)->not->toBeEmpty();
-    expect($chatMessages->last()->content)->toBe("{$invitee->name} joined the Dynamic as a EDITOR");
+    expect($chatMessages->last()->content)->toBe("<user:{$invitee->id}> joined the Dynamic as a EDITOR");
 });

tests/Feature/MutationTest.php

@@ -32,11 +32,13 @@ test('owner can create a mutation which is automatically approved and does not s
     // Verify chat messages (should NOT say "approved" or "Approved")
     $mutationChatMessages = $mutation->chat->messages;
     expect($mutationChatMessages)->toHaveCount(1);
-    expect($mutationChatMessages->first()->content)->toBe("System: Entry was created by {$owner->name}.");
+    expect($mutationChatMessages->first()->user_id)->toBeNull();
+    expect($mutationChatMessages->first()->content)->toBe("Entry was created by <user:{$owner->id}>.");
 
     $dynamicChatMessages = $dynamic->chat->messages;
     expect($dynamicChatMessages)->toHaveCount(1);
-    expect($dynamicChatMessages->first()->content)->toBe("System: {$owner->name} added entry \"Direct point reward\" for +15 points on \"{$ledger->name}\" ledger.");
+    expect($dynamicChatMessages->first()->user_id)->toBeNull();
+    expect($dynamicChatMessages->first()->content)->toBe("<user:{$owner->id}> added entry \"Direct point reward\" for +15 points on \"{$ledger->name}\" ledger.");
 });
 
 test('non-owner participant creates a suggestion which defaults to pending and says suggested', function () {
@@ -68,11 +70,13 @@ test('non-owner participant creates a suggestion which defaults to pending and s
     // Verify chat messages
     $mutationChatMessages = $mutation->chat->messages;
     expect($mutationChatMessages)->toHaveCount(1);
-    expect($mutationChatMessages->first()->content)->toBe("System: Suggestion was created by {$participant->name}.");
+    expect($mutationChatMessages->first()->user_id)->toBeNull();
+    expect($mutationChatMessages->first()->content)->toBe("Suggestion was created by <user:{$participant->id}>.");
 
     $dynamicChatMessages = $dynamic->chat->messages;
     expect($dynamicChatMessages)->toHaveCount(1);
-    expect($dynamicChatMessages->first()->content)->toBe("System: {$participant->name} suggested \"Suggested point reward\" for +10 points on \"{$ledger->name}\" ledger.");
+    expect($dynamicChatMessages->first()->user_id)->toBeNull();
+    expect($dynamicChatMessages->first()->content)->toBe("<user:{$participant->id}> suggested \"Suggested point reward\" for +10 points on \"{$ledger->name}\" ledger.");
 });
 
 test('owner can approve a pending suggestion and it is updated and logged', function () {
@@ -110,8 +114,10 @@ test('owner can approve a pending suggestion and it is updated and logged', func
     $mutationChatMessages = $mutation->chat->messages;
     // Note: one from boot created (empty or via seeder, but in our factory it starts with 0 messages if not manually logged,
     // actually our model booted hook creates the chat but doesn't log on boot, the update method creates 1 message)
-    expect($mutationChatMessages->last()->content)->toBe("System: Suggestion was APPROVED by {$owner->name}.");
+    expect($mutationChatMessages->last()->user_id)->toBeNull();
+    expect($mutationChatMessages->last()->content)->toBe("Suggestion was APPROVED by <user:{$owner->id}>.");
 
     $dynamicChatMessages = $dynamic->chat->messages;
-    expect($dynamicChatMessages->last()->content)->toBe("System: {$owner->name} APPROVED the suggestion \"Polished dungeon floors\" for +20 points on \"{$ledger->name}\" ledger.");
+    expect($dynamicChatMessages->last()->user_id)->toBeNull();
+    expect($dynamicChatMessages->last()->content)->toBe("<user:{$owner->id}> APPROVED the suggestion \"Polished dungeon floors\" for +20 points on \"{$ledger->name}\" ledger.");
 });

tests/Feature/ParticipantDetailTest.php

@@ -0,0 +1,95 @@
+<?php
+
+use App\Models\User;
+use App\Models\Dynamic;
+use App\Models\Ledger;
+use App\Models\Mutation;
+
+test('authenticated participant can view another participant detail page in dynamic', function () {
+    $owner = User::factory()->create();
+    $participant = User::factory()->create();
+    $dynamic = Dynamic::factory()->create();
+    
+    $dynamic->participants()->attach($owner->id, ['role' => 'owner', 'display_name' => 'The Boss']);
+    $dynamic->participants()->attach($participant->id, ['role' => 'participant']);
+
+    $this->actingAs($owner);
+
+    $response = $this->get(route('dynamics.users.show', [$dynamic->id, $participant->id]));
+
+    $response->assertOk();
+    $response->assertInertia(fn ($page) => $page
+        ->component('Participants/Show')
+        ->has('dynamic')
+        ->where('participant.id', $participant->id)
+        ->where('participant.name', $participant->name)
+        ->where('participant.display_name', null)
+        ->where('participant.role', 'participant')
+        ->has('mutations')
+    );
+});
+
+test('non-participant cannot view participant detail page in dynamic', function () {
+    $owner = User::factory()->create();
+    $participant = User::factory()->create();
+    $outsider = User::factory()->create();
+    $dynamic = Dynamic::factory()->create();
+    
+    $dynamic->participants()->attach($owner->id, ['role' => 'owner']);
+    $dynamic->participants()->attach($participant->id, ['role' => 'participant']);
+
+    $this->actingAs($outsider);
+
+    $response = $this->get(route('dynamics.users.show', [$dynamic->id, $participant->id]));
+
+    $response->assertStatus(403);
+});
+
+test('participant detail page displays their recent mutations in dynamic', function () {
+    $owner = User::factory()->create();
+    $participant = User::factory()->create();
+    $dynamic = Dynamic::factory()->create();
+    $ledger = Ledger::factory()->create(['dynamic_id' => $dynamic->id]);
+    
+    $dynamic->participants()->attach($owner->id, ['role' => 'owner']);
+    $dynamic->participants()->attach($participant->id, ['role' => 'participant', 'display_name' => 'Bitch']);
+
+    // Create mutations in this dynamic
+    $mutation1 = Mutation::factory()->create([
+        'ledger_id' => $ledger->id,
+        'user_id' => $participant->id,
+        'amount' => 10,
+        'description' => 'Chore 1',
+    ]);
+    
+    $mutation2 = Mutation::factory()->create([
+        'ledger_id' => $ledger->id,
+        'user_id' => $participant->id,
+        'amount' => -5,
+        'description' => 'Infraction 1',
+    ]);
+
+    // Create a mutation in another dynamic (should NOT be displayed)
+    $otherDynamic = Dynamic::factory()->create();
+    $otherLedger = Ledger::factory()->create(['dynamic_id' => $otherDynamic->id]);
+    $otherDynamic->participants()->attach($participant->id, ['role' => 'participant']);
+    $mutation3 = Mutation::factory()->create([
+        'ledger_id' => $otherLedger->id,
+        'user_id' => $participant->id,
+        'amount' => 100,
+        'description' => 'Other dynamic chore',
+    ]);
+
+    $this->actingAs($owner);
+
+    $response = $this->get(route('dynamics.users.show', [$dynamic->id, $participant->id]));
+
+    $response->assertOk();
+    $response->assertInertia(fn ($page) => $page
+        ->component('Participants/Show')
+        ->where('participant.display_name', 'Bitch')
+        ->has('mutations', 2)
+        ->where('mutations.0.description', 'Infraction 1') // Ordered latest first
+        ->where('mutations.1.description', 'Chore 1')
+    );
+});