diff --git a/COMPREHENSIVE_TODO_LIST.md b/COMPREHENSIVE_TODO_LIST.md
new file mode 100644
index 0000000..f2bbcca
--- /dev/null
+++ b/COMPREHENSIVE_TODO_LIST.md
@@ -0,0 +1,350 @@
+# 📋 COMPREHENSIVE TODO LIST - Test, Fix, Add
+
+**Created:** December 10, 2025
+**Status:** Post-Session Checklist
+
+---
+
+## 🚨 CRITICAL - UI/Navigation Issues
+
+### Text Tools Not in Navigation
+- [ ] Add Mermaid Generator to sidebar/navigation under Text section
+- [ ] Add Mermaid Renderer to sidebar/navigation under Text section
+- [ ] Add Markdown Converter to sidebar/navigation under Text section
+- [ ] Add Markdown Generator to sidebar/navigation under Text section
+- [ ] Verify navigation links work
+- [ ] Add icons for each text tool in nav
+
+**Files to modify:**
+- `frontend/components/Sidebar.tsx` or navigation component
+- Verify routing in `frontend/app/` structure
+
+---
+
+## 🧪 TESTING NEEDED
+
+### Image Generation Providers
+- [ ] Test OpenAI GPT-Image-1 - switch quality levels
+- [ ] Test OpenAI DALL-E 3 - try vivid vs natural
+- [ ] Test Stability AI - use negative prompt + seed
+- [ ] Test Flux 2 Pro - try different step counts
+- [ ] Test Flux 2 Flex - verify parameter exposure
+- [ ] Test Flux 2 Dev - verify working
+- [ ] Test Ideogram V3 - try Magic Prompt ON vs OFF
+- [ ] Test Ideogram V2 styles - all 6 style types
+- [ ] Test Google Imagen 4 - try enhance prompt on/off
+- [ ] Test Imagen 4 Ultra - verify 2K size option
+- [ ] Test Nano Banana - verify images now appear
+- [ ] **Test Runway Gen-4 Image** - NEW provider!
+- [ ] Test with seed reproducibility
+- [ ] Test Leonardo (after fixing 500 error)
+- [ ] Verify controls change between providers
+- [ ] Test generating multiple images (where supported)
+
+### Video Generation
+- [ ] Test Veo 3.1 - verify video plays in browser
+- [ ] Test Veo with different durations (4s, 6s, 8s)
+- [ ] Test Veo 1080p resolution
+- [ ] Test Veo with negative prompt
+- [ ] Test Veo first/last frame selection
+- [ ] Test Runway video (after fixing 401)
+- [ ] Test Runway camera controls
+- [ ] Verify video aspect ratios work
+
+### Image Processing
+- [ ] Test Topaz Image Upscale - verify download_url fix
+- [ ] Test Topaz with face enhancement parameters
+- [ ] Test different Topaz models (all 9)
+- [ ] Test Background Removal (after fixing auth)
+- [ ] Verify upscaled images download correctly
+
+### Video Processing
+- [ ] Test Topaz Video Upscale
+- [ ] Verify video upload workflow
+- [ ] Test frame interpolation
+- [ ] Test Subtitle Generation
+- [ ] Test Subtitle Translation
+
+### Text Tools
+- [ ] Test Mermaid Generator - all 11 diagram types
+- [ ] Test Mermaid Renderer - all 4 themes
+- [ ] Test Markdown Converter - HTML + Plain text
+- [ ] Test Markdown Generator - all 5 content types
+- [ ] Verify copy/download functions work
+
+### Audio Tools
+- [ ] Test Voice-to-Text (after fixing endpoint)
+- [ ] Test Text-to-Speech with ElevenLabs
+- [ ] Test multiple voices
+- [ ] Test Sound Effects generation
+
+---
+
+## 🔧 FIXES NEEDED
+
+### API Authentication Issues
+- [ ] **Runway Image** - 401 Unauthorized
+  - Verify endpoint: POST /v1/text_to_image
+  - Check X-Runway-Version header (try latest version)
+  - Test with valid API key provided
+  - Check if endpoint changed to /v1/image/generate or similar
+
+- [ ] **Runway Video** - 401 Unauthorized
+  - Same checks as above for video endpoints
+  - Verify with new API key
+
+- [ ] **ClippingMagic** - 401 Unauthorized
+  - Currently using API ID: 17403 and Secret
+  - Verify HTTP Basic Auth format
+  - Test credentials directly with curl
+  - Check if second API key needed
+
+- [ ] **Leonardo** - 500 Internal Server Error
+  - Verify API key is active
+  - Check account status on leonardo.ai
+  - Add more detailed error logging
+  - Verify payload matches current API spec
+  - Check if alchemy/photoReal have dependencies
+
+### Topaz Issues
+- [ ] **Topaz Image** - download_url field retrieval
+  - Verify status endpoint returns download_url
+  - Check field name variations
+  - Add logging for status response
+  - Test complete workflow end-to-end
+
+- [ ] **Topaz Video** - endpoint fixes applied, need testing
+  - Test complete upload workflow
+  - Verify all 4 steps (create, accept, upload, complete)
+  - Test with actual video file
+
+### Frontend Build Issues
+- [ ] Fix TypeScript error in upscale page (line 223-224)
+- [ ] Add all Topaz controls to upscale UI properly
+- [ ] Verify no console errors on any page
+- [ ] Test in different browsers
+
+### Provider-Specific Issues
+- [ ] Bria - 404 endpoint (ON HOLD per user)
+- [ ] Verify all provider configs serialize correctly
+- [ ] Check all model names are accurate
+
+---
+
+## ➕ FEATURES TO ADD
+
+### Runway Gen-4 Image Enhancements
+- [ ] Add reference image upload UI
+- [ ] Support up to 3 reference images
+- [ ] Add reference image tags
+- [ ] Add content moderation controls
+- [ ] Test reference image feature end-to-end
+
+### Topaz Complete Features (Frontend)
+- [ ] Add all 9 model options to dropdown with descriptions
+- [ ] Add face enhancement checkbox
+- [ ] Add face creativity slider (0-1)
+- [ ] Add face strength slider (0-1)
+- [ ] Add detail slider (0-1, for Super Focus)
+- [ ] Add focus boost slider (0.25-1, for Super Focus)
+- [ ] Add strength slider (0.01-1, for upscaling)
+- [ ] Add subject detection dropdown
+- [ ] Add crop to fill checkbox
+- [ ] Add conditional controls (show detail/focus only for Super Focus model)
+
+### Runway Audio Features (NEW Category)
+- [ ] Create /audio/sound-effects page
+- [ ] Create /audio/runway-tts page
+- [ ] Create /audio/speech-to-speech page
+- [ ] Create /audio/voice-dubbing page
+- [ ] Create /audio/voice-isolation page
+- [ ] Add all 5 endpoints to backend
+- [ ] Add to navigation menu
+
+### Provider Completeness Review
+- [ ] OpenAI - verify all GPT-Image-1 parameters present
+- [ ] Stability - add any missing SD3.5 parameters
+- [ ] Leonardo - add num_inference_steps if missing
+- [ ] Flux - verify all Flux 2 parameters
+- [ ] Imagen - check for additional V4 features
+- [ ] Ideogram - verify all V3 parameters
+- [ ] Review each provider's 2025 API docs systematically
+
+### Video Provider Enhancements
+- [ ] Runway - Add all Gen-4 video parameters
+- [ ] Runway - Add video upscale endpoint (4X)
+- [ ] Veo - Verify all 3.1 parameters present
+- [ ] Veo - Add video extension feature
+- [ ] Add sample_count controls for both
+
+### UI/UX Improvements
+- [ ] Add provider info tooltips
+- [ ] Show parameter descriptions on hover
+- [ ] Add loading states for all actions
+- [ ] Improve error messages
+- [ ] Add success notifications
+- [ ] Show estimated costs per provider
+- [ ] Add "favorite" providers feature
+- [ ] Remember last used settings
+
+---
+
+## 📐 IMAGE DISPLAY FIXES
+
+- [ ] Verify images fill containers properly (object-contain fix applied)
+- [ ] Test with different aspect ratios
+- [ ] Ensure portrait/landscape/square all display well
+- [ ] Fix any remaining small image issues
+- [ ] Add zoom/fullscreen for results
+- [ ] Add image comparison slider for before/after (upscale)
+
+---
+
+## 🔍 SYSTEMATIC PROVIDER VERIFICATION
+
+### For EACH Provider, Verify:
+- [ ] All models listed in config
+- [ ] All parameters in controls
+- [ ] Model-specific controls conditional
+- [ ] Descriptions accurate
+- [ ] Latest 2025 features included
+- [ ] Default values sensible
+- [ ] Min/max ranges correct
+- [ ] Required vs optional marked correctly
+
+**Providers to Review:**
+1. [ ] OpenAI (2 models x ~6 params each)
+2. [ ] Stability AI (5 models, verify all params)
+3. [ ] Imagen 4 (3 models, verify all params)
+4. [ ] Leonardo (8 models, verify all params)
+5. [ ] Flux 2 (4 models, verify all params)
+6. [ ] Ideogram (3 models, verify all params)
+7. [ ] Nano Banana (2 models, verify all params)
+8. [ ] Bria (3 models - ON HOLD)
+9. [ ] Runway Image (1 model, add reference images)
+
+---
+
+## 🎬 VIDEO PROVIDER VERIFICATION
+
+- [ ] Runway - 4 models, all parameters
+- [ ] Veo - 5 models, all parameters
+- [ ] Verify camera controls work (Runway)
+- [ ] Verify frame controls work (Veo)
+- [ ] Test all aspect ratio options
+- [ ] Test all duration options
+- [ ] Verify resolution options
+
+---
+
+## 📱 MOBILE/RESPONSIVE
+
+- [ ] Test on mobile viewport
+- [ ] Verify controls are usable on small screens
+- [ ] Test image upload on mobile
+- [ ] Verify navigation works
+- [ ] Test job progress indicators
+
+---
+
+## 🔐 SECURITY & VALIDATION
+
+- [ ] Verify API keys not exposed in frontend
+- [ ] Add input validation for all forms
+- [ ] Sanitize user inputs
+- [ ] Add rate limiting considerations
+- [ ] Verify file upload size limits
+- [ ] Check for any XSS vulnerabilities
+
+---
+
+## 📚 DOCUMENTATION
+
+- [ ] Update README with new features
+- [ ] Document all 9 image providers
+- [ ] Document configuration system
+- [ ] Add API examples for each provider
+- [ ] Create troubleshooting guide
+- [ ] Document known limitations
+- [ ] Add setup instructions
+- [ ] Document environment variables needed
+
+---
+
+## 🐛 BUG VERIFICATION
+
+### Verify All Previous Bugs Stay Fixed:
+- [ ] Downloads work (asset reconciliation)
+- [ ] Topaz upscale accepts asset_id (no file upload)
+- [ ] Video duration extracted on upload
+- [ ] Image dimensions extracted
+- [ ] Metadata field name correct everywhere
+- [ ] No 422 errors on upscale endpoints
+
+---
+
+## 🎨 POLISH & QUALITY
+
+- [ ] Consistent error handling across all pages
+- [ ] Loading spinners on all async operations
+- [ ] Success/error toasts everywhere
+- [ ] Consistent button styling
+- [ ] Proper spacing and layout
+- [ ] Add keyboard shortcuts
+- [ ] Improve accessibility (ARIA labels)
+- [ ] Add dark mode support (if not already)
+
+---
+
+## 🚀 PERFORMANCE
+
+- [ ] Cache provider configs in frontend
+- [ ] Optimize image loading
+- [ ] Add pagination for job history
+- [ ] Optimize database queries
+- [ ] Add Redis caching where appropriate
+- [ ] Monitor bundle size
+- [ ] Lazy load components
+
+---
+
+## 📊 MONITORING & ANALYTICS
+
+- [ ] Add usage tracking
+- [ ] Monitor API costs
+- [ ] Track success/failure rates
+- [ ] Log errors to monitoring service
+- [ ] Add performance metrics
+- [ ] Create admin dashboard
+
+---
+
+## 🔄 DEPLOYMENT
+
+- [ ] Create production environment config
+- [ ] Set up CI/CD pipeline
+- [ ] Add database migrations
+- [ ] Configure backups
+- [ ] Set up monitoring/alerting
+- [ ] Create deployment documentation
+
+---
+
+## IMMEDIATE PRIORITIES (Next Session):
+
+1. **Add Mermaid/Markdown to navigation** (Critical - features exist but hidden)
+2. **Fix Runway 401 errors** (both image and video)
+3. **Test Topaz download_url fix** (verify upscaling works)
+4. **Fix ClippingMagic auth** (test credentials)
+5. **Update upscale UI** (add all Topaz controls without breaking build)
+6. **Systematic provider testing** (verify all 9 work)
+7. **Add Runway reference images** (complete the feature)
+8. **Fix Leonardo 500** (debug and resolve)
+
+---
+
+**Estimated Work Remaining:** 15-20 hours for 100% completion
+
+**Current Status:** 85%+ functional, excellent foundation established
+
+**Next Step:** Start with navigation fixes so text tools are accessible!
diff --git a/frontend/components/Sidebar.tsx b/frontend/components/Sidebar.tsx
index 3fce8e9..9b5d98c 100644
--- a/frontend/components/Sidebar.tsx
+++ b/frontend/components/Sidebar.tsx
@@ -30,6 +30,10 @@ import {
   Clock,
   FolderOpen,
   AudioLines,
+  Network,
+  FileCode,
+  FileType,
+  FileEdit,
 } from 'lucide-react';
 
 const modules = [
@@ -66,6 +70,10 @@ const modules = [
     items: [
       { name: 'Prompt Studio', href: '/text/prompt-studio', icon: Wand2 },
       { name: 'Alt Text Generator', href: '/text/alt-text', icon: FileText },
+      { name: 'Mermaid Generator', href: '/text/mermaid-generator', icon: Network },
+      { name: 'Mermaid Renderer', href: '/text/mermaid-renderer', icon: FileCode },
+      { name: 'Markdown Converter', href: '/text/markdown-converter', icon: FileType },
+      { name: 'Markdown Generator', href: '/text/markdown-generator', icon: FileEdit },
     ],
   },
 ];