refactor: update internal command references in all plugin files

Updated:
- projman: 4 commands + 4 skills + integration snippet
- git-flow: 4 commands + 3 skills + integration snippet
- pr-review: 1 command cross-reference
- cmdb-assistant: 1 command + 1 skill
- data-platform: 8 commands + integration snippet
- viz-platform: 11 commands + integration snippet
- contract-validator: 1 command + 1 skill + 1 agent

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

plugins/git-flow/commands/git-commit.md

@@ -1,10 +1,10 @@
 ---
-name: commit
+name: git-commit
 description: Create a git commit with auto-generated conventional commit message
 agent: git-assistant
 ---
 
-# /commit - Smart Commit
+# /git-commit - Smart Commit
 
 ## Skills