feat: add reminders page, BMad skills upgrade, MCP server refactor

- Add reminders page with navigation support
- Upgrade BMad builder module to skills-based architecture
- Refactor MCP server: extract tools and auth into separate modules
- Add connections cache, custom AI provider support
- Update prisma schema and generated client
- Various UI/UX improvements and i18n updates
- Add service worker for PWA support

Made-with: Cursor

.agent/skills/bmad-agent-builder/assets/save-memory.md

@@ -0,0 +1,17 @@
+---
+name: save-memory
+description: Explicitly save current session context to memory
+menu-code: SM
+---
+
+# Save Memory
+
+Immediately persist the current session context to memory.
+
+## Process
+
+Update `index.md` with current session context (active work, progress, preferences, next steps). Checkpoint `patterns.md` and `chronology.md` if significant changes occurred.
+
+## Output
+
+Confirm save with brief summary: "Memory saved. {brief-summary-of-what-was-updated}"