workstation: emo contribute access + Phase-5 cutover done; gate master (push=apply) [ci skip]

ADR-0004's premise was wrong: pushing master fires the Woodpecker apply
pipeline (require_approval=forks only), so master pushes ARE deploys.
Added Forgejo branch protection on master (push/merge whitelist=viktor,
deploy keys allowed); non-admins contribute via branches + PRs.

emo (ebarzin): write collaborator on viktor/infra, PAT in
~/.git-credentials, forgejo remote + upstream in his locked clone.
Phase-5 finished: code-shared removed; ~/.claude symlinks kept (they
ARE the skel shared-base mechanism — plan step 4c obsolete).
Offboard runbook: revoke PAT + collaborator + group steps added.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/plans/2026-06-07-multi-user-workstation-design.md

@@ -166,6 +166,7 @@ Design principle: **every bit of devvm setup is an idempotent git script** — n
 - **ADR-0002 — devvm Linux users, not K8s ephemeral pods.** Re-platforming is overkill at this scale; config-push is easier on one host.
 - **ADR-0003 — Config inheritance via native machine-wide layers + per-user override.** Rejected: periodic sync, OverlayFS (no live lowerdir edits), Nix (rebuild not live).
 - **ADR-0004 — Infra access via per-user writable git-crypt-locked clones (changes ungated).** Each non-admin gets their own writable, keyless (locked) clone — read + edit + push freely, no PR gate. Safe because infra apply is manual + admin-only (push ≠ apply, id=4355) and the clone can't decrypt secrets. Rejected: the shared read-only mirror (gated changes) and the shared unlocked tree (secret leak + commit entanglement). Trade: repo-local CLAUDE.md updates via pull, not live (global config inheritance stays live via §4).
+  - **AMENDED 2026-06-10 — the "push ≠ apply" premise was WRONG.** The Forgejo→Woodpecker webhook on `viktor/infra` fires `.woodpecker/default.yml` on `push` to `master` (`require_approval: forks` only), which terragrunt-applies changed stacks — so an ungated master push IS a deploy. Enforcement added instead of dropping the ADR: Forgejo **branch protection on `master`** (push + merge whitelists = `viktor`, deploy keys allowed). Non-admins keep free branch pushes + PRs; only admin merges land on master. "No PR gate" is thereby reversed for non-admins; the rest of the ADR (per-user locked clones) stands. As-built: `../architecture/multi-tenancy.md` → "Contribute access".
 - **ADR-0005 — Power-user = cluster-wide read-only (no Secrets), via a NEW dedicated ClusterRole.** Re-widens cross-tenant READ for the trusted power-user tier only — but via a NEW `oidc-power-user-readonly` ClusterRole (get/list/watch, NO `secrets`), NOT the existing `oidc-power-user` (which grants read+write+Secrets and is unbound). Bound to the user's OIDC identity (kubelogin) — the apiserver accepts Authentik OIDC for the `kubernetes` audience; the dashboard's SA-token pattern is for the dashboard UI only.
 - **ADR-0006 — The roster is the single source of truth for the FULL lifecycle.** `roster.yaml` drives onboard *and* offboard; `/etc/ttyd-user-map`, `dispatch.json`, and Authentik `T3 Users` membership are *derived* from it, and tier is *validated* against `k8s_users` (fail-loud on mismatch). Rejected: hand-maintaining the four membership lists in parallel (guaranteed drift). Offboarding is first-class + staged (reversible cut → cluster revoke → gated `userdel`), not an afterthought.
 - **ADR-0007 — Add swap + a capacity budget to the devvm before onboarding active users.** A shared 24 GB / **0-swap** host OOM-kills live sessions under multi-user load (wizard alone runs ~20). Swap + a max-concurrent ceiling are prerequisites, not follow-ups.

docs/plans/2026-06-07-multi-user-workstation-plan.md

@@ -171,6 +171,8 @@ users:
 
 ### Task 5.1: Cut emo over to his own writable locked clone (opt-in, reversible)
 
+> **DONE 2026-06-10** (staged across 06-08 → 06-10), with two deviations: (1) step 4(c) **skipped deliberately** — the live `/etc/skel` shared base delivers `~/.claude/{rules,skills}` AS symlinks into the admin base, so emo's existing symlinks match the as-built design and were kept; (2) push access was **added** (not in this plan): `ebarzin` = write collaborator on Forgejo `viktor/infra` + PAT in `~/.git-credentials` + `forgejo` remote, with `master` branch-protected (see ADR-0004 amendment — push to master auto-applies via Woodpecker, so it is whitelist-gated to `viktor`). Verified: branch push OK, master push rejected, `code-shared` removed, admin tree unreadable as emo.
+
 **Files:** none (host state; an explicit one-time action — NOT the routine reconcile)
 
 - [ ] **Step 1: Prereqs.** Confirm emo inherits config (Phase 1) + has his scoped kubeconfig (Phase 2). (Phase 3 deliberately SKIPPED emo — his clone is created *here*.)