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/viz-platform/commands/viz-chart.md

@@ -2,7 +2,7 @@
 description: Create a Plotly chart with theme integration
 ---
 
-# Create Chart
+# Viz Chart
 
 ## Skills to Load
 - skills/mcp-tools-reference.md
@@ -21,7 +21,7 @@ Create a Plotly chart with automatic theme token application.
 ## Usage
 
 ```
-/chart {type}
+/viz-chart {type}
 ```
 
 ## Arguments
@@ -36,6 +36,6 @@ chart_create(chart_type="line", data_ref="df", x="date", y="value", theme=None)
 
 ## Related Commands
 
-- `/chart-export {format}` - Export chart to image
-- `/theme {name}` - Apply theme to charts
-- `/dashboard` - Create layout with charts
+- `/viz-chart-export {format}` - Export chart to image
+- `/viz-theme {name}` - Apply theme to charts
+- `/viz-dashboard` - Create layout with charts