docs(milestone): complete v0.2-lxc-deploy

v0.2 milestone complete. Merged to main, tagged v0.1.2, release #377.
19/20 REQ-IDs covered, 1 deferred (live first-boot timing).
Next milestone: v0.3 (mastery scoring).

---ci---
project: praxis
phase: 2
milestone: v0.2
status: complete
milestone_complete: true
requirements:
  covered: [REQ-DEPLOY-01..16, REQ-NFR-DEPLOY-01,02,04]
  deferred: [REQ-NFR-DEPLOY-03]
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,12 +1,18 @@
 {
-  "phase": 1,
+  "phase": 2,
   "stage": "complete",
   "milestone": "v0.2",
-  "phase_role": "execution",
+  "phase_role": "final",
   "attempts": 0,
-  "updated_at": "2026-08-01T15:15:00Z",
+  "updated_at": "2026-08-03T19:00:00Z",
   "release_status": "created",
-  "release_url": "https://git.cloudinit.dev/coreci/praxis/releases/tag/v0.1.1",
-  "tag": "v0.1.1",
-  "next_phase": 2
+  "release_url": "https://git.cloudinit.dev/coreci/praxis/releases/tag/v0.1.2",
+  "tag": "v0.1.2",
+  "milestone_complete": true,
+  "milestone_merged_to_main": true,
+  "next_milestone": "v0.3",
+  "requirements": {
+    "covered": ["REQ-DEPLOY-01", "REQ-DEPLOY-02", "REQ-DEPLOY-03", "REQ-DEPLOY-04", "REQ-DEPLOY-05", "REQ-DEPLOY-06", "REQ-DEPLOY-07", "REQ-DEPLOY-08", "REQ-DEPLOY-09", "REQ-DEPLOY-10", "REQ-DEPLOY-11", "REQ-DEPLOY-12", "REQ-DEPLOY-13", "REQ-DEPLOY-14", "REQ-DEPLOY-15", "REQ-DEPLOY-16", "REQ-NFR-DEPLOY-01", "REQ-NFR-DEPLOY-02", "REQ-NFR-DEPLOY-04"],
+    "deferred": ["REQ-NFR-DEPLOY-03"]
+  }
 }