feat: Implement self-healing capability for Guardian

Add complete self-healing system where Guardian automatically fixes
issues it identifies in its own codebase using LJPW diagnosis.

Core Components:
- SelfHealer class with automatic fix application
- Healing strategies mapped to LJPW dimensions:
  * Love (Care): Auto-generate docstrings, improve documentation
  * Justice (Fairness): Balance test coverage, add test stubs
  * Power (Execution): Auto-format code (black), sort imports (isort)
  * Wisdom (Strategy): Add architecture docs, reduce complexity

Healing Actions:
- Auto-format code with black
- Sort imports with isort
- Generate missing docstrings
- Create test stubs for under-tested modules
- Add strategic documentation (ARCHITECTURE.md, CONTRIBUTING.md, etc.)

Safety Features:
- Dry-run mode to preview changes
- Test verification before committing fixes
- Rollback on test failures
- Action prioritization by impact

New CLI Command: `guardian heal-self`
- --dry-run: Preview without changes
- --max-actions N: Limit healing actions
- -o FILE: Save healing report

Example Dry Run Output:
Planned 5 healing actions:
1. [Power] ✓ Auto-format code with black (Impact: +0.050)
2. [Love] ✓ Add 2 docstrings to formatters.py (Impact: +0.040)
3. [Justice] ✓ Generate test stubs for gap_analyzer (Impact: +0.040)
4. [Justice] ✓ Generate test stubs for geopolitical (Impact: +0.040)
5. [Justice] ✓ Generate test stubs for ice analyzer (Impact: +0.040)

Meta-Application:
This completes the self-correcting loop:
1. Diagnose (self-analyze) ✓
2. Heal (heal-self) ✓
3. Verify (run tests) ✓
4. Improve (track metrics) ✓

Guardian can now truly heal itself using its own LJPW framework!

Author: claude

guardian/meta/__init__.py

@@ -1,13 +1,17 @@
 """
 Guardian Meta-Analysis Module
 
-Self-analysis capabilities where Guardian uses its own LJPW framework
-to analyze and improve itself.
+Self-analysis and self-healing capabilities where Guardian uses its own
+LJPW framework to analyze and improve itself.
 """
 
 from guardian.meta.self_analyzer import SelfAnalyzer, CodeHealthReport
+from guardian.meta.self_healer import SelfHealer, HealingAction, HealingReport
 
 __all__ = [
     'SelfAnalyzer',
     'CodeHealthReport',
+    'SelfHealer',
+    'HealingAction',
+    'HealingReport',
 ]