feat: production deployment - full update with providers, admin, glossaries, pricing, tests

Major changes across backend, frontend, infrastructure:
- Provider system with model selection (Google, DeepL, OpenAI, Ollama, Google Cloud)
- Admin panel: user management, pricing, settings
- Glossary system with CSV import/export
- Subscription and tier quota management
- Security hardening (rate limiting, API key auth, path traversal fixes)
- Docker compose for dev, prod, and IONOS deployment
- Alembic migrations for new tables
- Frontend: dashboard, pricing page, landing page, i18n (en/fr)
- Test suite and verification scripts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

_bmad/bmm/data/project-context-template.md

@@ -0,0 +1,26 @@
+# Project Brainstorming Context Template
+
+## Project Focus Areas
+
+This brainstorming session focuses on software and product development considerations:
+
+### Key Exploration Areas
+
+- **User Problems and Pain Points** - What challenges do users face?
+- **Feature Ideas and Capabilities** - What could the product do?
+- **Technical Approaches** - How might we build it?
+- **User Experience** - How will users interact with it?
+- **Business Model and Value** - How does it create value?
+- **Market Differentiation** - What makes it unique?
+- **Technical Risks and Challenges** - What could go wrong?
+- **Success Metrics** - How will we measure success?
+
+### Integration with Project Workflow
+
+Brainstorming results might feed into:
+
+- Product Briefs for initial product vision
+- PRDs for detailed requirements
+- Technical Specifications for architecture plans
+- Research Activities for validation needs
+