Update Agent Governance extension to v1.2.0 (#2659)

Update agent-governance extension submitted by @bigsmartben:
- extensions/catalog.community.json (version, download_url, description, tools)
- docs/community/extensions.md community extensions table

Closes #2624

Author: mnriem

docs/community/extensions.md

@@ -23,7 +23,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Extension | Purpose | Category | Effect | URL |
 |-----------|---------|----------|--------|-----|
 | Agent Assign | Assign specialized Claude Code agents to spec-kit tasks for targeted execution | `process` | Read+Write | [spec-kit-agent-assign](https://github.com/xymelon/spec-kit-agent-assign) |
-| Agent Governance | Project-local agent governance memory and context projection | `process` | Read+Write | [spec-kit-agent-governance](https://github.com/bigsmartben/spec-kit-agent-governance) |
+| Agent Governance | Generate agent-platform repository governance files from Spec Kit metadata | `process` | Read+Write | [spec-kit-agent-governance](https://github.com/bigsmartben/spec-kit-agent-governance) |
 | AI-Driven Engineering (AIDE) | A structured 7-step workflow for building new projects from scratch with AI assistants — from vision through implementation | `process` | Read+Write | [aide](https://github.com/mnriem/spec-kit-extensions/tree/main/aide) |
 | API Evolve | Managed API contract evolution — breaking-change detection, semver enforcement, deprecation orchestration, and lifecycle gates across REST, GraphQL, and gRPC | `process` | Read+Write | [spec-kit-api-evolve](https://github.com/Quratulain-bilal/spec-kit-api-evolve) |
 | Architect Impact Previewer | Predicts architectural impact, complexity, and risks of proposed changes before implementation. | `visibility` | Read-only | [spec-kit-architect-preview](https://github.com/UmmeHabiba1312/spec-kit-architect-preview) |

extensions/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-05-20T00:00:00Z",
+  "updated_at": "2026-05-21T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "aide": {
@@ -71,10 +71,10 @@
     "agent-governance": {
       "name": "Agent Governance",
       "id": "agent-governance",
-      "description": "Project-local agent governance memory and context projection.",
+      "description": "Generate agent-platform repository governance files from Spec Kit metadata.",
       "author": "bigben",
-      "version": "1.1.0",
-      "download_url": "https://github.com/bigsmartben/spec-kit-agent-governance/archive/refs/tags/v1.1.0.zip",
+      "version": "1.2.0",
+      "download_url": "https://github.com/bigsmartben/spec-kit-agent-governance/archive/refs/tags/v1.2.0.zip",
       "repository": "https://github.com/bigsmartben/spec-kit-agent-governance",
       "homepage": "https://github.com/bigsmartben/spec-kit-agent-governance",
       "documentation": "https://github.com/bigsmartben/spec-kit-agent-governance/blob/main/README.md",
@@ -84,8 +84,8 @@
         "speckit_version": ">=0.8.0",
         "tools": [
           {
-            "name": "python3",
-            "required": false
+            "name": "uv",
+            "required": true
           }
         ]
       },
@@ -103,7 +103,7 @@
       "downloads": 0,
       "stars": 0,
       "created_at": "2026-05-14T00:00:00Z",
-      "updated_at": "2026-05-15T00:00:00Z"
+      "updated_at": "2026-05-21T00:00:00Z"
     },
     "agent-orchestrator": {
       "name": "Intelligent Agent Orchestrator",