feat: govern workforce optimization with DecisionWorkspace (#98)

## Summary
- teach the workforce optimization Skill to use the canonical
DecisionWorkspace human/Agent governance flow
- declare DecisionWorkspace and OptimizationSolve capabilities while
retaining MindOptSolve compatibility
- document exact-revision artifact lineage, guarded execution,
independent validation, and human approval
- preserve the external MindOpt deployment, license, cost, and secret
boundaries

## Validation
- full i18n validation
- translation freshness check
- validator unit tests (9/9)
- git diff check

## Compatibility
Requires DesireCore 10.0.127 or newer.

---------

Co-authored-by: yige <yige@yigedeMacBook-Neo.local>

manifest.json

@@ -1,6 +1,6 @@
 {
   "name": "DesireCore Official Market",
-  "version": "1.2.29",
+  "version": "1.2.30",
   "schemaVersion": "1.1.0",
   "supportedLocales": ["zh-CN", "en-US"],
   "defaultLocale": "en-US",
@@ -28,7 +28,7 @@
   "stats": {
     "totalAgents": 1,
     "totalSkills": 62,
-    "lastUpdated": "2026-08-25"
+    "lastUpdated": "2026-08-29"
   },
   "features": [
     "curated-index",