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

.github/skills/bmad-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_