checkpoint(p2): v0.4 phase 2 complete → v0.3.2

P2 shipped: tag v0.3.2, release id 750. REQ-031 covered. Branch
oy/phase/02 deleted. Next: P3 docs build CI.

---ci---
project: oy
phase: 2
milestone: v0.4
status: complete
tag_base: v0.3.x
milestone_type: nfr
phase_release_tag: v0.3.2
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,5 +1,5 @@
 {
-  "phase": 1,
+  "phase": 2,
   "stage": "complete",
   "milestone": "v0.4",
   "milestone_type": "nfr",
@@ -7,8 +7,8 @@
   "phase_role": "execution",
   "project": "oy",
   "attempts": 0,
-  "updated_at": "2026-08-17T23:35:00Z",
-  "phase_release_tag": "v0.3.1",
-  "release_id": 749,
-  "reqs_covered": ["REQ-029", "REQ-030"]
+  "updated_at": "2026-08-17T23:40:00Z",
+  "phase_release_tag": "v0.3.2",
+  "release_id": 750,
+  "reqs_covered": ["REQ-029", "REQ-030", "REQ-031"]
 }