feat: Implement Phase 5 Quest System (100% complete)

Add YAML-driven quest system with context-aware offering:

Core Implementation:
- Quest data models (Quest, QuestObjective, QuestReward, QuestTriggers)
- QuestService for YAML loading and caching
- QuestEligibilityService with level, location, and probability filtering
- LoreService stub (MockLoreService) ready for Phase 6 Weaviate integration

Quest Content:
- 5 example quests across difficulty tiers (2 easy, 2 medium, 1 hard)
- Quest-centric design: quests define their NPC givers
- Location-based probability weights for natural quest offering

AI Integration:
- Quest offering section in npc_dialogue.j2 template
- Response parser extracts [QUEST_OFFER:quest_id] markers
- AI naturally weaves quest offers into NPC conversations

API Endpoints:
- POST /api/v1/quests/accept - Accept quest offer
- POST /api/v1/quests/decline - Decline quest offer
- POST /api/v1/quests/progress - Update objective progress
- POST /api/v1/quests/complete - Complete quest, claim rewards
- POST /api/v1/quests/abandon - Abandon active quest
- GET /api/v1/characters/{id}/quests - List character quests
- GET /api/v1/quests/{quest_id} - Get quest details

Frontend:
- Quest tracker sidebar with HTMX integration
- Quest offer modal for accept/decline flow
- Quest detail modal for viewing progress
- Combat service integration for kill objective tracking

Testing:
- Unit tests for Quest models and serialization
- Integration tests for full quest lifecycle
- Comprehensive test coverage for eligibility service

Documentation:
- Reorganized docs into /docs/phases/ structure
- Added Phase 5-12 planning documents
- Updated ROADMAP.md with new structure

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

docs/phases/Phase12-Launch.md

@@ -0,0 +1,247 @@
+# Phase 12: Launch Preparation
+
+**Goal:** Marketing, final polish, and public launch
+**Priority:** High
+**Status:** Not Started
+**Last Updated:** November 29, 2025
+
+---
+
+## Overview
+
+Prepare for public launch with marketing materials, user documentation, payment integration, legal compliance, and final quality assurance.
+
+**Key Goals:**
+- Marketing landing page
+- User documentation (how to play)
+- Payment integration (Stripe subscriptions)
+- Legal compliance (privacy policy, ToS)
+- Final security and performance review
+- Public launch
+
+---
+
+## Task Groups
+
+### Marketing & Landing Page (4 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.1 | Design landing page | ⬜ | Hero, features, pricing, CTA |
+| 12.2 | Create landing page | ⬜ | `/public_web/templates/landing.html` |
+| 12.3 | Create marketing screenshots/videos | ⬜ | Gameplay screenshots, demo video |
+| 12.4 | Set up social media accounts | ⬜ | Twitter/X, Discord, Reddit |
+
+**Landing Page Sections:**
+- Hero: Tagline, CTA, hero image
+- Features: AI DM, character creation, combat, quests
+- Pricing: Free, Premium, Elite tiers
+- FAQ: Common questions
+- Footer: Links, legal, social
+
+**Deliverable:** Public-facing marketing presence
+
+---
+
+### User Documentation (3 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.5 | Write "How to Play" guide | ⬜ | Getting started, character creation, gameplay |
+| 12.6 | Write FAQ | ⬜ | Common questions and answers |
+| 12.7 | **Checkpoint:** Review documentation | ⬜ | Test with new user |
+
+**Documentation Topics:**
+- Account creation
+- Character creation
+- Gameplay basics (story, combat, quests)
+- Subscription tiers
+- Troubleshooting
+
+**Deliverable:** User-friendly documentation
+
+---
+
+### Payment Integration (4 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.8 | Set up Stripe account | ⬜ | Business account, test mode first |
+| 12.9 | Create subscription products | ⬜ | Free, Premium ($X/mo), Elite ($X/mo) |
+| 12.10 | Implement subscription endpoints | ⬜ | Create, cancel, webhook handling |
+| 12.11 | Create subscription management UI | ⬜ | Upgrade, downgrade, cancel |
+
+**Subscription Tiers:**
+| Tier | Price | Features |
+|------|-------|----------|
+| Free | $0 | Basic gameplay, limited AI calls |
+| Premium | $X/mo | Unlimited AI, marketplace, multiplayer |
+| Elite | $X/mo | All features, priority support, exclusive content |
+
+**Stripe Integration:**
+```python
+# Webhook endpoint for subscription events
+@app.route('/api/v1/webhooks/stripe', methods=['POST'])
+def stripe_webhook():
+    event = stripe.Webhook.construct_event(...)
+    if event['type'] == 'customer.subscription.updated':
+        # Update user tier in database
+    return '', 200
+```
+
+**Deliverable:** Working payment system
+
+---
+
+### Legal Compliance (3 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.12 | Create Privacy Policy | ⬜ | Data collection, usage, GDPR compliance |
+| 12.13 | Create Terms of Service | ⬜ | User responsibilities, liability, refunds |
+| 12.14 | Add cookie consent banner | ⬜ | If using analytics/tracking cookies |
+
+**Deliverable:** Legal compliance
+
+---
+
+### Analytics & Support (3 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.15 | Set up analytics | ⬜ | Privacy-friendly (Plausible, Fathom) or GA |
+| 12.16 | Set up support system | ⬜ | Email support, Discord, or ticketing |
+| 12.17 | Create support documentation | ⬜ | How to contact, response times |
+
+**Deliverable:** User analytics and support
+
+---
+
+### Final Reviews (3 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.18 | Final security review | ⬜ | Penetration testing, OWASP check |
+| 12.19 | Final performance review | ⬜ | Load testing with expected traffic |
+| 12.20 | **Checkpoint:** Launch readiness check | ⬜ | All systems go |
+
+**Launch Readiness Checklist:**
+- [ ] All features working
+- [ ] No critical bugs
+- [ ] Payment system tested
+- [ ] Legal pages in place
+- [ ] Monitoring active
+- [ ] Backups running
+- [ ] Support ready
+- [ ] Marketing ready
+
+**Deliverable:** Launch-ready application
+
+---
+
+### Launch (2 tasks)
+
+| Task ID | Task | Status | Notes |
+|---------|------|--------|-------|
+| 12.21 | Write launch announcement | ⬜ | Blog post, social media posts |
+| 12.22 | **LAUNCH!** | ⬜ | Go live, announce, celebrate! |
+
+**Launch Day Checklist:**
+1. Final backup before launch
+2. Remove any beta/test restrictions
+3. Enable payment processing (live mode)
+4. Post announcement on all channels
+5. Monitor systems closely for first 24 hours
+6. Respond quickly to any issues
+
+**Deliverable:** Public launch of Code of Conquest
+
+---
+
+## Files to Create/Modify
+
+**New Files:**
+- `/public_web/templates/landing.html` - Marketing landing page
+- `/public_web/templates/pricing.html` - Pricing page
+- `/public_web/templates/legal/privacy.html` - Privacy policy
+- `/public_web/templates/legal/terms.html` - Terms of service
+- `/public_web/templates/docs/how-to-play.html` - User guide
+- `/public_web/templates/docs/faq.html` - FAQ
+- `/api/app/api/subscriptions.py` - Subscription endpoints
+- `/api/app/api/webhooks.py` - Stripe webhook handling
+- `/api/app/services/subscription_service.py` - Subscription logic
+
+**Modified Files:**
+- `/api/app/__init__.py` - Register subscription routes
+- `/api/config/*.yaml` - Stripe configuration
+- `/public_web/templates/base.html` - Analytics, cookie consent
+
+---
+
+## Testing Criteria
+
+### Payment Testing
+- [ ] Subscription creation works (test mode)
+- [ ] Subscription cancellation works
+- [ ] Webhooks received and processed
+- [ ] Tier changes reflected immediately
+
+### Legal Review
+- [ ] Privacy policy covers all data practices
+- [ ] Terms of service protect business
+- [ ] Cookie consent compliant
+
+### Final Testing
+- [ ] Load test passed
+- [ ] Security test passed
+- [ ] All features working end-to-end
+- [ ] New user can complete full flow
+
+---
+
+## Success Criteria
+
+- [ ] Landing page live and attractive
+- [ ] User documentation complete
+- [ ] Payment system working (Stripe live)
+- [ ] Legal pages in place
+- [ ] Analytics tracking
+- [ ] Support system ready
+- [ ] Security review passed
+- [ ] Performance review passed
+- [ ] Successful public launch
+
+---
+
+## Dependencies
+
+**Requires (from earlier phases):**
+- Beta testing complete (Phase 11)
+- All bugs fixed
+- Performance optimized
+
+---
+
+## Post-Launch Priorities
+
+After launch, focus on:
+1. Monitor systems closely (first 48 hours critical)
+2. Respond to user feedback quickly
+3. Fix any launch-day bugs immediately
+4. Engage with community on Discord/social
+5. Track key metrics (signups, conversions, retention)
+
+---
+
+## Task Summary
+
+| Group | Tasks | Checkpoints |
+|-------|-------|-------------|
+| Marketing & Landing Page | 4 | 0 |
+| User Documentation | 2 | 1 |
+| Payment Integration | 4 | 0 |
+| Legal Compliance | 3 | 0 |
+| Analytics & Support | 3 | 0 |
+| Final Reviews | 2 | 1 |
+| Launch | 1 | 1 |
+| **Total** | **19** | **3** |