feat: implement user profiles with achievements and primary badge system (#58)

## Summary

This PR implements comprehensive user profile enhancements including:
- User profile pages showing stats, badges, social links, and bio
- Achievement system with 62 achievements across 5 categories
- Primary badge selection allowing users to display their preferred badge
- Admin profile editing capabilities

## Changes

### User Profiles (#45)
- **Frontend**: User profile pages with stats display
  - Profile cards showing avatar, display name, username, and bio
  - Social links section (Website, GitHub, Bluesky, LinkedIn, Twitch, YouTube, Discord)
  - Stats display (suggestions, accepted suggestions, likes, comments)
  - Recent achievements section
  - Badge display
  - Report button for other users' profiles
- **Backend**: Profile API endpoints
  - Get user profile by username or ID
  - Profile includes stats, badges, and achievement points

### Achievement System (#48)
- **Database**: UserAchievement model for tracking progress
- **62 Total Achievements** across 5 categories:
  - **Suggestions (15)**: First suggestion through ultimate curator
  - **Likes (12)**: First like through legendary fan
  - **Comments (12)**: First comment through review legend
  - **Engagement (15)**: Login streaks and activity milestones
  - **Reports (8)**: Valid reports and accuracy tracking
- **Backend**: AchievementService with real-time checking
  - Integrated into all user interaction points
  - API endpoints for achievement data
  - Progress tracking to avoid recalculation
- **Frontend**: Achievements page and profile integration
  - Full achievements page with category filtering
  - Tier-based styling (Bronze, Silver, Gold, Platinum, Diamond)
  - Progress indicators for in-progress achievements
  - Recent achievements on profile pages

### Primary Badge System (#49)
- **Database**: Add primaryBadge field to User model
- **Backend**: Update profile endpoints to include primary badge
- **Frontend**: Primary badge selection in settings
  - Only shows badges the user has earned
  - Displayed on profile page
  - Displayed in comments (next to username)
  - Falls back to no badge if selection is invalid
- **Admin Features**: Admin can edit any user's primary badge

### Admin Enhancements
- Comprehensive profile editing modal for admins
  - Edit display name, bio, slug, social links
  - Set primary badge for users
  - Visual feedback for save/error states
- Admin action buttons in report review modals
  - Ban user, delete comment, edit profile
  - Integrated with report workflow

### Quality Improvements
- Improved dropdown option contrast for readability
- Hide all badges when no primary badge is selected
- "View All" achievements link only shown on own profile
- Improved achievement text readability

## Testing

- ✅ User profiles display correctly with stats and badges
- ✅ Achievement checking works for all interaction types
- ✅ Primary badge selection persists and displays correctly
- ✅ Admin profile editing saves successfully
- ✅ Report workflow integrated with admin actions
- ✅ Achievements page shows all 62 achievements with filtering
- ✅ Text readability improved across components

Closes #45
Closes #48
Closes #49

Co-authored-by: Hikari <hikari@nhcarrigan.com>
Reviewed-on: #58
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

pnpm-lock.yaml

@@ -56,6 +56,18 @@ importers:
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         specifier: 9.0.0
         version: 9.0.0
+      '@fortawesome/angular-fontawesome':
+        specifier: 4.0.0
+        version: 4.0.0(@angular/core@21.1.2(@angular/compiler@21.1.2)(rxjs@7.8.2))
+      '@fortawesome/fontawesome-svg-core':
+        specifier: 7.2.0
+        version: 7.2.0
+      '@fortawesome/free-brands-svg-icons':
+        specifier: 7.2.0
+        version: 7.2.0
+      '@fortawesome/free-solid-svg-icons':
+        specifier: 7.2.0
+        version: 7.2.0
       '@nhcarrigan/logger':
         specifier: 1.1.1
         version: 1.1.1
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+    peerDependencies:
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+
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+    engines: {node: '>=6'}
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+    engines: {node: '>=6'}
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+    engines: {node: '>=6'}
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+    engines: {node: '>=6'}
+
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@@ -11651,6 +11684,26 @@ snapshots:
       fastq: 1.20.1
       glob: 13.0.1
 
+  '@fortawesome/angular-fontawesome@4.0.0(@angular/core@21.1.2(@angular/compiler@21.1.2)(rxjs@7.8.2))':
+    dependencies:
+      '@angular/core': 21.1.2(@angular/compiler@21.1.2)(rxjs@7.8.2)
+      '@fortawesome/fontawesome-svg-core': 7.2.0
+      tslib: 2.8.1
+
+  '@fortawesome/fontawesome-common-types@7.2.0': {}
+
+  '@fortawesome/fontawesome-svg-core@7.2.0':
+    dependencies:
+      '@fortawesome/fontawesome-common-types': 7.2.0
+
+  '@fortawesome/free-brands-svg-icons@7.2.0':
+    dependencies:
+      '@fortawesome/fontawesome-common-types': 7.2.0
+
+  '@fortawesome/free-solid-svg-icons@7.2.0':
+    dependencies:
+      '@fortawesome/fontawesome-common-types': 7.2.0
+
   '@hapi/boom@10.0.1':
     dependencies:
       '@hapi/hoek': 11.0.7