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-merge.md

@@ -1,10 +1,10 @@
 ---
-name: commit-merge
+name: git-commit-merge
 description: Commit current changes and merge branch into target
 agent: git-assistant
 ---
 
-# /commit-merge - Commit and Merge
+# /git-commit-merge - Commit and Merge
 
 ## Skills
 
@@ -29,7 +29,7 @@ Commit current changes, then merge the current branch into a target branch.
 ## Workflow
 
 1. **Display header** - Show GIT-FLOW Commit & Merge header
-2. **Run /commit** - Execute standard commit workflow
+2. **Run /git-commit** - Execute standard commit workflow
 3. **Identify target** - Prompt for target branch if not specified
 4. **Select strategy** - Merge commit, squash, or rebase (per merge-workflow.md)
 5. **Execute merge** - Switch to target, pull, merge, push