feat: transform to agent coordination platform with comprehensive documentation

Transform Issue Facade from a universal CLI tool into an agent coordination platform with comprehensive documentation and enhanced capabilities for autonomous coding agents.

Major Changes:
- Complete README rewrite focusing on agent-driven coordination
- New comprehensive documentation (AGENT_INTEGRATION.md, CLAUDE.md, ROADMAP.md)
- Capability integration setup with CAPABILITY.yaml and integration scripts
- Enhanced Makefile with local development targets for easier workflows

Bug Fixes:
- Fix schema initialization using executescript() for multi-line SQL support
- Disable FTS5 triggers due to compatibility issues (documented for future re-enablement)

Features:
- Enhanced CLI list command with full parameter passthrough
- New examples directory with agent integration patterns
- New comprehensive test suite (test_core_models.py, test_local_backend.py)

Code Quality:
- Remove @cached_property decorators for Label properties (simplification)
- Clean up test organization (removed old test_gitea_integration.py)

This milestone establishes Issue Facade as a production-ready coordination layer for multi-agent software development, with clear integration paths and comprehensive developer documentation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

issue_tracker/core/models.py

@@ -10,7 +10,6 @@ from dataclasses import dataclass, field
 from datetime import datetime, timezone
 from enum import Enum
 from typing import List, Optional, Dict, Any
-from functools import cached_property
 
 
 class IssueState(Enum):
@@ -88,7 +87,7 @@ class Label:
     description: Optional[str] = None
     backend_id: Optional[str] = None  # Backend-specific ID for sync
 
-    @cached_property
+    @property
     def category(self) -> str:
         """Categorize label for efficient filtering."""
         if self.name.startswith('priority:'):
@@ -102,12 +101,12 @@ class Label:
         else:
             return 'other'
 
-    @cached_property
+    @property
     def priority(self) -> Optional[Priority]:
         """Extract priority if this is a priority label."""
         return Priority.from_label(self.name)
 
-    @cached_property
+    @property
     def issue_type(self) -> Optional[IssueType]:
         """Extract issue type if this is a type label."""
         return IssueType.from_label(self.name)
@@ -121,7 +120,7 @@ class LabelCategories:
     status_labels: List[Label]
     other_labels: List[Label]
 
-    @cached_property
+    @property
     def priority(self) -> Optional[Priority]:
         """Get the issue priority."""
         for label in self.priority_labels:
@@ -129,7 +128,7 @@ class LabelCategories:
                 return label.priority
         return None
 
-    @cached_property
+    @property
     def issue_type(self) -> Optional[IssueType]:
         """Get the issue type."""
         for label in self.type_labels:
@@ -205,9 +204,9 @@ class Issue:
     sync_metadata: Dict[str, Any] = field(default_factory=dict)
 
     # Performance Optimization
-    _label_categories: Optional[LabelCategories] = field(default=None, init=False)
+    _label_categories: Optional[LabelCategories] = field(default=None, init=False, repr=False)
 
-    @cached_property
+    @property
     def label_categories(self) -> LabelCategories:
         """Efficiently categorize labels with caching."""
         if self._label_categories is None:
@@ -227,12 +226,12 @@ class Issue:
                 else:
                     other_labels.append(label)
 
-            self._label_categories = LabelCategories(
+            object.__setattr__(self, '_label_categories', LabelCategories(
                 priority_labels=priority_labels,
                 type_labels=type_labels,
                 status_labels=status_labels,
                 other_labels=other_labels
-            )
+            ))
         return self._label_categories
 
     @property