chore: sync .cursor/ directory with latest agents, commands, and skills

- Sync 13 agent files with updated descriptions and configurations
- Sync 23 command files with latest YAML frontmatter and content
- Sync 7 skill SKILL.md files with proper YAML frontmatter quoting
- Copy missing cpp-testing and security-scan skills to .cursor/
- Fix integration tests: send matching input to blocking hook test and
  expect correct exit code 2 (was 1)

.cursor/commands/instinct-import.md

@@ -17,7 +17,7 @@ python3 "${CLAUDE_PLUGIN_ROOT}/skills/continuous-learning-v2/scripts/instinct-cl
 Or if `CLAUDE_PLUGIN_ROOT` is not set (manual installation):
 
 ```bash
-python3 skills/continuous-learning-v2/scripts/instinct-cli.py import <file-or-url>
+python3 ~/.claude/skills/continuous-learning-v2/scripts/instinct-cli.py import <file-or-url>
 ```
 
 Import instincts from:
@@ -40,7 +40,7 @@ Import instincts from:
 2. Parse and validate the format
 3. Check for duplicates with existing instincts
 4. Merge or add new instincts
-5. Save to `homunculus/instincts/inherited/`
+5. Save to `~/.claude/homunculus/instincts/inherited/`
 
 ## Import Process
 
@@ -136,7 +136,7 @@ Added: 8 instincts
 Updated: 1 instinct
 Skipped: 3 instincts (2 duplicates, 1 conflict)
 
-New instincts saved to: homunculus/instincts/inherited/
+New instincts saved to: ~/.claude/homunculus/instincts/inherited/
 
 Run /instinct-status to see all instincts.
 ```