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/workflows/generate-project-context/project-context-template.md

@@ -0,0 +1,21 @@
+---
+project_name: '{{project_name}}'
+user_name: '{{user_name}}'
+date: '{{date}}'
+sections_completed: ['technology_stack']
+existing_patterns_found: { { number_of_patterns_discovered } }
+---
+
+# Project Context for AI Agents
+
+_This file contains critical rules and patterns that AI agents must follow when implementing code in this project. Focus on unobvious details that agents might otherwise miss._
+
+---
+
+## Technology Stack & Versions
+
+_Documented after discovery phase_
+
+## Critical Implementation Rules
+
+_Documented after discovery phase_