docs(P01): complete Orgs+Window foundation phase

---ci---
project: oy
phase: 1
milestone: v0.2
status: complete
phase_role: execution
requirements:
  covered: [REQ-015, REQ-016, REQ-017, REQ-012]
  partial: []
---/ci---

Phase 1 (Orgs+Window foundation) complete. 3 new modules (x/window, x/stand, x/guild)
+ lexicon meta-test scaffolding (G-004). 143 tests total (53 v0.1 baseline + 90 new), 100%
coverage on new packages. Window = fullest primitive (lifecycle Open->Active->Revoked->
Expired, rate-limit, append-only audit log). 9-type Stand enum. Guild Hand-Pass @ 0% fee.
G-003 by-ID-string import invariant test green. G-004/G-009 lexicon meta-test + self-test
table green. Tagged v0.1.1.

.ciagent/CHECKPOINT.json

@@ -1,11 +1,11 @@
 {
-  "phase": 0,
-  "stage": "plan",
+  "phase": 1,
+  "stage": "execute",
   "milestone": "v0.2",
   "milestone_type": "feature",
   "tag_base": "v0.1.x",
-  "phase_role": "pre_execution",
+  "phase_role": "execution",
   "project": "oy",
   "attempts": 0,
-  "updated_at": "2026-08-17T21:00:00Z"
+  "updated_at": "2026-08-17T21:15:00Z"
 }