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/agents/code-reviewer.md

@@ -8,11 +8,13 @@ model: opus
 You are a senior code reviewer ensuring high standards of code quality and security.
 
 When invoked:
+
 1. Run git diff to see recent changes
 2. Focus on modified files
 3. Begin review immediately
 
 Review checklist:
+
 - Code is simple and readable
 - Functions and variables are well-named
 - No duplicated code
@@ -25,6 +27,7 @@ Review checklist:
 - Licenses of integrated libraries checked
 
 Provide feedback organized by priority:
+
 - Critical issues (must fix)
 - Warnings (should fix)
 - Suggestions (consider improving)
@@ -74,6 +77,7 @@ Include specific examples of how to fix issues.
 ## Review Output Format
 
 For each issue:
+
 ```
 [CRITICAL] Hardcoded API key
 File: src/core/lib/api-client.ts:42