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>

.clinerules/workflows/bmad-bmb-validate-module.md

@@ -0,0 +1,10 @@
+---
+description: 'Run compliance check on BMAD modules against best practices'
+auto_execution_mode: "iterate"
+---
+
+# validate-module
+
+Read the entire workflow file at {project-root}/_bmad/bmb/workflows/module/workflow-validate-module.md
+
+Follow all instructions in the workflow file exactly as written.