docs(init): v0.11 phase 0 specify — validate specification

Bump config.json milestone to v0.11, phase 0. Initialize checkpoint at specify stage. Adopt 5 research docs (ingress hybrid, drift detection, platform-engineer playbook, strategic positioning, systemd Path unit impl) with locked decisions Q1=A (adopt R-017..R-020), Q2=C (add all 5 CLI commands), Q3=A (fold ingress into P15.5), Q4=A (--force + per-ns scoping), Q5=A (Nomad-inspired framing).

---ci---
project: orca
phase: 0
milestone: v0.11
status: specify
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,25 +1,19 @@
 {
-  "phase": 5,
-  "stage": "complete",
-  "milestone": "v0.10",
-  "milestone_slug": "docs-cli-examples",
-  "phase_role": "final",
+  "phase": 0,
+  "stage": "specify",
+  "milestone": "v0.11",
+  "milestone_slug": "production-hardening",
+  "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-05T21:30:00Z",
-  "milestone_complete": true,
-  "next_milestone": "v0.11",
-  "ship": {
-    "tag": "v0.9.6",
-    "merged_to_main": true,
-    "milestone_branch_deleted": true,
-    "all_phase_branches_deleted": true
-  },
-  "requirements": {
-    "covered": [91,92,93,94,95,96,97,98],
-    "partial": []
-  },
-  "gates": {
-    "cleared": ["C-20", "C-21", "C-22"],
-    "deferred_v0_11": []
+  "updated_at": "2026-08-07T00:00:00Z",
+  "milestone_complete": false,
+  "previous_milestone": "v0.10",
+  "research_docs_ingested": 5,
+  "locked_decisions": {
+    "Q1": "A",
+    "Q2": "C",
+    "Q3": "A",
+    "Q4": "A",
+    "Q5": "A"
   }
-}
+}