v0.2.0:11 + v0.2.0:12 — Archive, Settings, agent surface, machines redesign

Two release cycles prepared together: v0.2.0:11 (policy archive + safe-
delete cleanup + brand-consistent confirm modals) and v0.2.0:12 (Settings
tab + agent-friendly operator API + machines tab redesign + buyer-facing
copy alignment).

Highlights:

- Migration 0015: policies.archived_at column. Archive button on tier
  cards; safe-delete relaxed to ignore revoked-license tombstones;
  renewal worker refuses archived policies.
- Migration 0016: scoped_api_keys table. Four roles (read-only,
  license-issuer, support, full-admin) with bounded scopes. Master
  admin_api_key still works on every endpoint; scoped keys gated on
  endpoints wired through require_scope().
- New /v1/openapi.json — public, no auth. Curated OpenAPI 3.1 spec
  for agent / SDK discovery.
- New Settings tab: Operator name + Payment providers panel + API
  keys management. Replaces 8 StartOS Actions (Zaprite all, BTCPay
  all, operator name, switch-provider). StartOS Actions pruned to 4
  install-time essentials.
- Machines tab rewritten: global default view grouped by product,
  filter pills with counts, quick-stats row, drill-down via new
  "Machines" button on each Licenses-tab row. New repo helper
  list_machines_admin joins machines x licenses x products
  server-side.
- Branded confirmModal replaces every native window.confirm() call
  in the admin UI (7 callsites).
- Enforce mode killed: KEYSAT_LICENSE_ENFORCE compile-time flag
  retired; daemon always boots; missing self-license -> Creator
  (free) tier. "Unlicensed" label gone from admin UI.
- Zaprite gated on the new zaprite_payments entitlement (renamed
  from card_payments to reflect the broader gateway).
- Creator code cap 5 -> 10.
- KEYSAT_AGENT_GUIDE.md: auth, role-to-scope mapping, error envelope,
  webhook events, worked recipes.
- Buyer-facing copy aligned with new positioning: "Bitcoin-native
  self-hosted software licensing" everywhere on production surfaces.
- Cross-product safety section (Section 9a) added to KEYSAT_INTEGRATION.md.
- 5 new API integration smoke tests covering OpenAPI, scoped API
  keys CRUD, role-elevation guard, and Zaprite-tier gating.

Test count: 83 passing (was 78). All migration tests pass against
0015 and 0016 applied to populated DBs.

licensing-service/migrations/0016_scoped_api_keys.sql

@@ -0,0 +1,37 @@
+-- Migration 0016: scoped API keys
+--
+-- The master `admin_api_key` (set in config) is a full-access credential;
+-- it's the right thing for the operator to hold but the wrong thing to
+-- hand to an agent or a third-party tool. This table stores additional
+-- API keys with operator-chosen roles that bound what they can do.
+--
+-- Storage model:
+--   - `token_hash` is the sha256 of the raw token. We NEVER store the
+--     raw token after generation — the create endpoint returns it once
+--     in the response body and that's the operator's only chance to
+--     copy it.
+--   - `role` is a string tag (read-only | license-issuer | support |
+--     full-admin). Scope sets per role are computed at auth time, not
+--     stored here — that way we can extend the scope mapping without a
+--     migration.
+--   - `revoked_at` flips this row from valid → permanently rejected.
+--     Soft-revoke rather than DELETE so the audit log keeps a stable
+--     reference and the operator can see "this key existed but is
+--     gone now" in the admin UI.
+--   - `last_used_at` is touched best-effort on every successful auth.
+--     Bounded write rate (one update per minute per key) is the next
+--     iteration; for v1 we update every call.
+
+CREATE TABLE IF NOT EXISTS scoped_api_keys (
+    id              TEXT PRIMARY KEY NOT NULL,
+    label           TEXT NOT NULL,
+    token_hash      TEXT NOT NULL UNIQUE,
+    role            TEXT NOT NULL,
+    created_at      TEXT NOT NULL,
+    last_used_at    TEXT,
+    revoked_at      TEXT,
+    CHECK (role IN ('read-only', 'license-issuer', 'support', 'full-admin'))
+);
+
+CREATE INDEX IF NOT EXISTS idx_scoped_api_keys_token ON scoped_api_keys(token_hash);
+CREATE INDEX IF NOT EXISTS idx_scoped_api_keys_active ON scoped_api_keys(revoked_at);