docs(P00): complete pre-execution phase — ship v0.0.0

---ci---
project: atelier
phase: 0
milestone: v0.1
status: complete
phase_role: pre_execution
ship:
  tag: v0.0.0
  merge: phase/00-pre-execution -> milestone/v0.1-atelier
  release: https://git.cloudinit.dev/cloudinit-bot/atelier/releases/tag/v0.0.0
---/ci---

Config owner corrected: coreci -> cloudinit-bot (actual token owner). Phase 0 complete: 10 domain first-principles + matrix + MANIFEST + uiux docs shipped as v0.0.0.

.ciagent/config.json

@@ -53,13 +53,13 @@
   "release": {
     "forge": "gitea",
     "base_url": "https://git.cloudinit.dev",
-    "owner": "coreci",
+    "owner": "cloudinit-bot",
     "repo": "atelier"
   },
   "gitea": {
     "base_url": "https://git.cloudinit.dev",
     "api_token_env": "GITEA_API_TOKEN",
-    "owner": "coreci",
+    "owner": "cloudinit-bot",
     "repo": "atelier"
   },
   "ship": {