Add Spec Scope extension to community catalog (#2172)

- Adds scope entry to catalog.community.json (between review and security-review)
- Adds Spec Scope row to community extensions table in README.md (between Spec Refine and Spec Sync)
- Bumps top-level updated_at to 2026-04-16T19:00:00Z

Author: Quratulain-bilal

README.md

@@ -246,6 +246,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Spec Critique Extension | Dual-lens critical review of spec and plan from product strategy and engineering risk perspectives | `docs` | Read-only | [spec-kit-critique](https://github.com/arunt14/spec-kit-critique) |
 | Spec Diagram | Auto-generate Mermaid diagrams of SDD workflow state, feature progress, and task dependencies | `visibility` | Read-only | [spec-kit-diagram-](https://github.com/Quratulain-bilal/spec-kit-diagram-) |
 | Spec Refine | Update specs in-place, propagate changes to plan and tasks, and diff impact across artifacts | `process` | Read+Write | [spec-kit-refine](https://github.com/Quratulain-bilal/spec-kit-refine) |
+| Spec Scope | Effort estimation and scope tracking — estimate work, detect creep, and budget time per phase | `process` | Read-only | [spec-kit-scope-](https://github.com/Quratulain-bilal/spec-kit-scope-) |
 | Spec Sync | Detect and resolve drift between specs and implementation. AI-assisted resolution with human approval | `docs` | Read+Write | [spec-kit-sync](https://github.com/bgervin/spec-kit-sync) |
 | SpecTest | Auto-generate test scaffolds from spec criteria, map coverage, and find untested requirements | `code` | Read+Write | [spec-kit-spectest](https://github.com/Quratulain-bilal/spec-kit-spectest) |
 | Staff Review Extension | Staff-engineer-level code review that validates implementation against spec, checks security, performance, and test coverage | `code` | Read-only | [spec-kit-staff-review](https://github.com/arunt14/spec-kit-staff-review) |

extensions/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-04-17T01:05:00Z",
+  "updated_at": "2026-04-17T02:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "aide": {
@@ -1657,6 +1657,39 @@
       "created_at": "2026-03-06T00:00:00Z",
       "updated_at": "2026-04-09T00:00:00Z"
     },
+    "scope": {
+      "name": "Spec Scope",
+      "id": "scope",
+      "description": "Effort estimation and scope tracking — estimate work, detect creep, and budget time per phase.",
+      "author": "Quratulain-bilal",
+      "version": "1.0.0",
+      "download_url": "https://github.com/Quratulain-bilal/spec-kit-scope-/archive/refs/tags/v1.0.0.zip",
+      "repository": "https://github.com/Quratulain-bilal/spec-kit-scope-",
+      "homepage": "https://github.com/Quratulain-bilal/spec-kit-scope-",
+      "documentation": "https://github.com/Quratulain-bilal/spec-kit-scope-/blob/main/README.md",
+      "changelog": "https://github.com/Quratulain-bilal/spec-kit-scope-/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.4.0"
+      },
+      "provides": {
+        "commands": 4,
+        "hooks": 1
+      },
+      "tags": [
+        "estimation",
+        "scope",
+        "effort",
+        "planning",
+        "project-management",
+        "tracking"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-04-17T02:00:00Z",
+      "updated_at": "2026-04-17T02:00:00Z"
+    },
     "security-review": {
       "name": "Security Review",
       "id": "security-review",