feat: Optimize all 18 command files using @include reference system

Major streamlining achievement:
- Eliminate 2,733 lines of duplicate content across commands
- Reduce individual command files by ~70% (130-150 → 35-60 lines)
- Leverage existing shared/*.yml reference patterns
- Maintain full Claude Code compliance

Benefits:
• Single source of truth for universal content
• Guaranteed consistency across all commands
• Dramatically reduced maintenance overhead
• Massive token efficiency improvements

Implementation:
- Universal Legend: @include shared/universal-constants.yml#Universal Legend
- Universal Flags: @include shared/flag-inheritance.yml#Universal_Always
- Command patterns: References to appropriate shared/*.yml files
- Template system: Enhanced command-patterns.yml

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

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

.claude/commands/build.md

@@ -1,35 +1,4 @@
-| Symbol | Meaning | | Abbrev | Meaning |
-|--------|---------|---|--------|---------|
-| → | leads to | | cfg | configuration |
-| & | and/with | | impl | implementation |
-| w/ | with | | perf | performance |
-| @ | at/located | | ops | operations |
-| > | greater than | | val | validation |
-| ∀ | for all/every | | req | requirements |
-| ∃ | exists/there is | | deps | dependencies |
-| ∴ | therefore | | env | environment |
-| ∵ | because | | db | database |
-| ≡ | equivalent | | api | interface |
-| ≈ | approximately | | docs | documentation |
-| 📁 | directory/path | | std | standard |
-| 🔢 | number/count | | def | default |
-| 📝 | text/string | | ctx | context |
-| ⚙ | setting/config | | err | error |
-| 🎛 | control/flags | | exec | execution |
-| 🔧 | configuration | | qual | quality |
-| 📋 | group/category | | rec | recovery |
-| 🚨 | critical/urgent | | sev | severity |
-| ⚠ | warning/caution | | resp | response |
-| 🔄 | retry/recovery | | esc | escalation |
-| ✅ | success/fixed | | tok | token |
-| ❌ | failure/error | | opt | optimization |
-| ℹ | information | | UX | user experience |
-| ⚡ | fast/quick | | UI | user interface |
-| 🐌 | slow/delayed | | C | critical |
-| ✨ | complete/done | | H | high |
-| 📖 | read operation | | M | medium |
-| ✏ | edit operation | | L | low |
-| 🗑 | delete operation | | |
+@include shared/universal-constants.yml#Universal_Legend
 
 ## Command Execution
 Execute: immediate. --plan→show plan first
@@ -38,23 +7,7 @@ Purpose: "[Action][Subject] in $ARGUMENTS"
 
 Build project/feature based on req in $ARGUMENTS.
 
-## Universal Flags
---plan: "Show execution plan before running"
---uc: "UltraCompressed mode (~70% token reduction)"
---ultracompressed: "Alias for --uc"
---think: "Multi-file analysis w/ context (4K tokens)"
---think-hard: "Deep architectural analysis (10K tokens)"
---ultrathink: "Critical system redesign (32K tokens)"
---c7: "Enable Context7→library documentation lookup"
---seq: "Enable Sequential→complex analysis & thinking"
---magic: "Enable Magic→UI component generation"
---pup: "Enable Puppeteer→browser automation & testing"
---all-mcp: "Enable all MCP servers"
---no-mcp: "Disable all MCP servers (native tools only)"
---no-c7: "Disable Context7 specifically"
---no-seq: "Disable Sequential thinking specifically"
---no-magic: "Disable Magic UI builder specifically"
---no-pup: "Disable Puppeteer specifically"
+@include shared/flag-inheritance.yml#Universal_Always
 
 Examples:
 - `/build --react --magic` - React app w/ UI gen
@@ -78,81 +31,8 @@ Templates:
 **--watch:** Continuous build | Real-time feedback | Incremental | Live reload
 **--interactive:** Step-by-step cfg | Interactive deps | Build customization
 
+@include shared/research-patterns.yml#Mandatory_Research_Flows
 
-```yaml
-Mandatory_Research_Flows:
-  External_Library_Research:
-    Step_1: "Identify library/framework mentioned"
-    Step_2: "Context7 lookup for official documentation"
-    Step_3: "Verify API patterns and examples"
-    Step_4: "Check version compatibility"
-    Step_5: "Document findings in implementation"
-    
-  Pattern_Research:
-    Step_1: "Search existing codebase for similar patterns"
-    Step_2: "Magic component search if UI-related"
-    Step_3: "WebSearch for official documentation"
-    Step_4: "Validate approach with Sequential thinking"
-    Step_5: "Document pattern choice rationale"
-    
-  API_Integration_Research:
-    Step_1: "Official documentation lookup"
-    Step_2: "Authentication requirements"
-    Step_3: "Rate limiting and error handling"
-    Step_4: "SDK availability and examples"
-    Step_5: "Integration testing approach"
-```
+@include shared/execution-patterns.yml#Git_Integration_Patterns
 
-```yaml
-Git_Workflows:
-  Auto_Safety_Checks:
-    Before_Commit:
-      - "git status → Verify intended files"
-      - "git diff --staged → Review changes"
-      - "Run tests if available"
-      - "Check for secrets/credentials"
-    Before_Push:
-      - "Verify target branch & remote"
-      - "Check for force push implications"
-      - "Ensure CI/CD readiness"
-    Before_Merge:
-      - "Test for conflicts"
-      - "Verify branch policies"
-      - "Check approval requirements"
-      
-  Commit_Standards:
-    Format: "{type}: {description}\n\n{body}\n\n🤖 Generated with [Claude Code]\n\nCo-Authored-By: Claude"
-    Types: ["feat", "fix", "docs", "style", "refactor", "test", "chore"]
-    Validation:
-      - "Type matches change nature"
-      - "Description < 50 chars"
-      - "Body explains why, not what"
-      
-  Branch_Management:
-    Strategy:
-      Feature: "feature/{description}"
-      Bugfix: "bugfix/{description}"
-      Release: "release/{version}"
-      Hotfix: "hotfix/{description}"
-    Protection:
-      Main: "No direct push, PR required"
-      Release: "Admin approval required"
-      Feature: "Auto-delete after merge"
-      
-  Conflict_Resolution:
-    Detection: "Auto-detect during pull/merge"
-    Strategies:
-      Simple: "Auto-resolve if non-overlapping"
-      Complex: "Interactive 3-way merge"
-      Binary: "Choose version explicitly"
-    Recovery:
-      Abort: "git merge --abort → restore state"
-      Stash: "git stash → try different approach"
-      Branch: "Create conflict-resolution branch"
-```
-
-## Success Messages
-✅ {operation} completed successfully
-📝 Created: {file_path}
-✏ Updated: {file_path}
-✨ Task completed: {task_title}
+@include shared/universal-constants.yml#Success_Messages