spec(ai-service-plane): requirements for review

Six requirements from the brief: ax kinds plus a Run kind; isolated, idempotent,
resumable tasks with metered budgets; a local reconciler under 500 lines with no
pipeline logic; ax's runner contract; repo-facts as the memory layer; and a
measured first increment (repo-facts + verify on the 46-candidate set: at least 16
of 20 declared sites, under $0.022 per candidate for two passes).

Phase: requirements, not yet approved.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo

.kiro/specs/ai-service-plane/spec.json

@@ -0,0 +1,22 @@
+{
+  "feature_name": "ai-service-plane",
+  "created_at": "2026-09-29T15:40:00Z",
+  "updated_at": "2026-09-29T15:40:00Z",
+  "language": "en",
+  "phase": "requirements",
+  "approvals": {
+    "requirements": {
+      "generated": true,
+      "approved": false
+    },
+    "design": {
+      "generated": false,
+      "approved": false
+    },
+    "tasks": {
+      "generated": false,
+      "approved": false
+    }
+  },
+  "ready_for_implementation": false
+}