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>

.opencode/command/bmad-cis-storytelling.md

@@ -0,0 +1,17 @@
+---
+name: 'storytelling'
+description: 'Craft compelling narratives using proven story frameworks and techniques. This workflow guides users through structured narrative development, applying appropriate story frameworks to create emotionally resonant and engaging stories for any purpose.'
+---
+
+Execute the BMAD 'storytelling' workflow.
+
+CRITICAL: You must load and follow the workflow definition exactly.
+
+WORKFLOW INSTRUCTIONS:
+
+1. LOAD the workflow file from {project-root}/_bmad/cis/workflows/storytelling/workflow.yaml
+2. READ its entire contents
+3. FOLLOW every step precisely as specified
+4. DO NOT skip or modify any steps
+
+WORKFLOW FILE: {project-root}/_bmad/cis/workflows/storytelling/workflow.yaml