diff --git a/.forgejo/workflows/deps-audit.yml b/.forgejo/workflows/deps-audit.yml
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+++ b/.forgejo/workflows/deps-audit.yml
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+# Weekly dependency guard (QA-B0-02 durable fix): dependency rot must surface
+# as a red scheduled run, not wait for the next manual audit. Fails on any
+# high+ vulnerability in production deps; prints the outdated report either way.
+name: deps-audit
+on:
+  schedule:
+    - cron: '0 11 * * 1' # Mondays 11:00 UTC (~06:00 America/Chicago)
+  workflow_dispatch:
+
+jobs:
+  audit:
+    runs-on: docker
+    container:
+      image: node:22-bookworm
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install (lockfile-exact)
+        run: npm ci
+
+      - name: Audit production deps (fail on high or critical)
+        run: npm audit --omit=dev --audit-level=high
+
+      - name: Outdated report (informational)
+        run: npm outdated || true
diff --git a/docs/DEPLOY_CHECKLIST.md b/docs/DEPLOY_CHECKLIST.md
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+++ b/docs/DEPLOY_CHECKLIST.md
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+# Production Deploy Checklist
+
+The environment/config items that are **not** enforced by code or CI and must be
+verified on the production instance itself. Each has a boot-time warning or a
+QA-plan pointer; this list is the single place they live (previously they only
+existed in session notes).
+
+## Required environment (production)
+
+| Variable                     | Why                                                                                                                                                                                                                                                                 | Symptom if missing                                            |
+| ---------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------- |
+| `TOKEN_ENCRYPTION_KEY`       | At-rest secrets (SimpleFIN token, SMTP/OIDC secrets, login IP/UA) otherwise fall back to a key stored **inside the database** — anyone with DB/backup read access can decrypt. On first boot with the key set, stored `v2:` ciphertexts migrate to env-keyed `e2:`. | Boot warning: `TOKEN_ENCRYPTION_KEY is not set in production` |
+| `WEBAUTHN_RP_ID`             | Passkeys bind cryptographically to this hostname; the `localhost` default silently breaks all passkey sign-ins behind a real domain. Bare hostname, no scheme/port (e.g. `bills.example.com`). Changing it later invalidates registered keys.                       | Boot warning: `WEBAUTHN_RP_ID is not set in production`       |
+| `WEBAUTHN_ORIGIN` (optional) | Pin the exact expected origin for WebAuthn ceremonies when the app is served from a non-default origin. When unset, the API origin plus any request origin whose hostname equals the RP ID is accepted.                                                             | Passkey enroll/sign-in fails origin verification              |
+
+## One-time settings (Admin panel / DB)
+
+- [ ] **Turn OFF `simplefin_debug_logging`** on the production instance
+      (Admin → bank sync config). It is a debugging aid; leaving it on logs
+      more sync detail than production needs.
+
+## Build/runtime infrastructure
+
+- [ ] **`cdn.sheetjs.com` egress** — the lockfile pins `xlsx` to the official
+      SheetJS dist tarball (the npm registry line is abandoned with unfixed
+      high CVEs). CI runners and Docker builds must be able to reach it for
+      `npm ci`.
+- [ ] **Node version alignment** — `package.json` engines, the Dockerfile base
+      image, and the CI image must agree (all `node:22` today). Bump all three
+      together.
+- [ ] Volumes/permissions/migrations: handled by `docker-entrypoint.sh`
+      (`chmod 700` data dirs, non-root `bill` user, `RUN_DB_MIGRATIONS=true`)
+      — covered by QA batch B16.
+
+## Standing dependency guard
+
+- `renovate.json` is in the repo — enable Renovate on the Forgejo instance for
+  grouped weekly update PRs.
+- Until then, `.forgejo/workflows/deps-audit.yml` runs weekly: it fails on any
+  high+ vulnerability (`npm audit --omit=dev --audit-level=high`) and prints
+  `npm outdated`, so dependency rot surfaces as a red scheduled run instead of
+  waiting for the next manual audit.
+- Deferred upgrade, tracked: **TypeScript 7** typechecks this codebase clean but
+  `typescript-eslint` (peer `<6.1.0`) cannot parse under it yet — revisit when
+  typescript-eslint ships TS 7 support.
diff --git a/renovate.json b/renovate.json
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+++ b/renovate.json
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+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:recommended"],
+  "timezone": "America/Chicago",
+  "schedule": ["before 6am on monday"],
+  "labels": ["dependencies"],
+  "rangeStrategy": "bump",
+  "packageRules": [
+    {
+      "description": "Group all non-major updates into one weekly PR",
+      "matchUpdateTypes": ["minor", "patch"],
+      "groupName": "non-major dependencies"
+    },
+    {
+      "description": "Majors stay separate — each needs its own verification pass (see docs/QA_PLAN.md B0 dependency recon)",
+      "matchUpdateTypes": ["major"],
+      "dependencyDashboardApproval": true
+    },
+    {
+      "description": "xlsx is pinned to the official SheetJS CDN tarball (npm line is abandoned with unfixed CVEs) — do not touch",
+      "matchPackageNames": ["xlsx"],
+      "enabled": false
+    },
+    {
+      "description": "typescript is capped at 6.x until typescript-eslint supports TS 7 (peer <6.1.0)",
+      "matchPackageNames": ["typescript"],
+      "allowedVersions": "<7.0.0"
+    }
+  ],
+  "vulnerabilityAlerts": { "enabled": true },
+  "osvVulnerabilityAlerts": true
+}