chore: update .gitignore and improve coding standards documentation

- Added .cursor/sessions/* to .gitignore to prevent session files from being tracked.
- Enhanced coding standards in SKILL.md by adding semicolons to TypeScript examples for consistency.
- Improved formatting in continuous learning, detail layout, and other SKILL.md files for better readability.

These changes aim to streamline development processes and maintain code quality across the project.

.cursor/commands/build-fix.md

@@ -5,16 +5,19 @@ Incrementally fix TypeScript and build errors:
 1. Run `pnpm typecheck` or `pnpm build` (this repo uses pnpm + Turbo + Vite)
 
 2. Parse error output:
+
    - Group by file
    - Sort by severity
 
 3. For each error:
+
    - Show 5 lines of context
    - Explain the issue
    - Apply a minimal fix
    - Re-run the failing command
 
 4. Stop if:
+
    - The fix introduces new errors
    - The same error persists after 3 attempts
    - The user asks to pause