refactor: improve memory update commands with parallel execution and fix file naming

- Renamed update-memory-full.md -> update-full.md for consistency
- Renamed update-memory-related.md -> update-related.md for consistency
- Added parallel execution support (max 4 concurrent) for both direct and agent modes
- Fixed execution strategy: <20 modules direct parallel, ≥20 modules agent batch
- Removed misleading "orchestrator agent" section that caused hierarchy confusion
- Clarified coordinator always executes, agents only for batching ≥20 modules
- Added explicit file naming rules to prevent ToolSidebar.CLAUDE.md errors
- Updated template and script with CRITICAL file naming constraints
- Removed all emoji symbols from documentation for clean text format
- Added smart filtering strategy to docs.md for auto-skip patterns

Key improvements:
- Phase 3A: Direct parallel execution (max 4 concurrent per depth)
- Phase 3B: Agent batch execution (4 modules/agent)
- Both modes use same batching strategy, differ only in agent layer
- Explicit CLAUDE.md file naming in 3 locations (script, template, checklist)

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

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

.claude/scripts/update_module_claude.sh

@@ -123,10 +123,11 @@ update_module_claude() {
     
     local base_prompt="
     ⚠️ CRITICAL RULES - MUST FOLLOW:
-    1. ONLY modify CLAUDE.md files
-    2. NEVER modify source code files
-    3. Focus exclusively on updating documentation
-    4. Follow the template guidelines exactly
+    1. Target file: ONLY create/update the file named 'CLAUDE.md' in current directory
+    2. File name: MUST be exactly 'CLAUDE.md' (not ToolSidebar.CLAUDE.md or any variant)
+    3. NEVER modify source code files
+    4. Focus exclusively on updating documentation
+    5. Follow the template guidelines exactly
 
     $template_content