feat: add resend tools, MCP collection endpoint, and UI refinements

- Add @tpmjs/tools-resend with email API tools and blocks.yml entries
- Add MCP route for collection skill discovery
- Add InstallationSection component for collections
- Refactor collection pages to use shared components and simplify layouts
- Update skills questions API, rate limiting, and API key handling
- Add tpmjs-tool-creator skill for Claude
- Update video feature scenes and fix lint issues
- Update .gitignore with IDE and temp file exclusions

.gitignore

@@ -63,6 +63,18 @@ secrets.json
 
 # ide
 .idea
+.agent/
+.agents/
+.continue/
+.cursor/
+.windsurf/
+
+# temporary analysis docs
+COMPREHENSIVE_ANALYSIS.md
+PLAN.md
+REGISTRY_TOOLS_ANALYSIS.md
+USER_ACCOUNT_ANALYSIS_*.md
+*.skill
 
 # storybook
 storybook-static