fix: wire npm run test:server into CI to establish green test baseline

[Copilot]

PR #353 noted "26/27 server tests pass" — the failing test was server/test/firebaseAdmin.test.js failing at module load with ERR_MODULE_NOT_FOUND in environments missing firebase-admin. The deeper problem: ci.yml never ran npm run test:server at all, so every PR's "tests pass" claim was unenforced.

Changes

• .github/workflows/ci.yml — added Test step (npm run test:server) between Lint and Build

- name: Test
  run: npm run test:server

Notes

The test file itself was already correct — firebaseAdmin.test.js uses full dependency injection to mock all firebase-admin functions, so no credentials are needed at runtime. firebase-admin is a proper dependency (not devDependency), so npm install always brings it in. All 30 server tests pass.

No production code modified.

Original prompt

Background

PR #353 (Sprint 0 Foundation) noted in its testing summary:

Server tests: 26/27 pass (1 pre-existing failure due to missing firebase-admin in CI env, unrelated to this PR)

This pre-existing failure is rotting the CI signal — every new PR's "tests pass" claim has to carry an asterisk. We want a green npm run test:server baseline so future PRs have a clean signal to compare against.

Task

1. Run npm install and npm run test:server locally in the agent environment to identify the failing test.
2. Diagnose the root cause. The PR description suggests it is related to firebase-admin not being available / configured in CI environments where FIREBASE_SERVICE_ACCOUNT_JSON and the related env vars are unset.
3. Fix it in the least invasive way. Preferred approaches in order:
   • If the test is asserting behavior that should gracefully degrade when firebase-admin is unconfigured (mirroring the pattern used in PR fix: image generation 503 when Firebase Admin is not configured #306 for image routes and the existing admin/battle route registrations), update the test to assert that graceful-degradation behavior.
   • If the test genuinely needs firebase-admin, mock firebase-admin (or the adminAuth export) at the test boundary so the test is self-contained and does not depend on env vars.
   • Only as a last resort, gate the test with a skip-if-no-credentials guard — and if you do, leave a TODO comment explaining the gap.
4. Make sure all 27 server tests pass after your change. Do not silence the failure by deleting the test.
5. Do not modify production server code unless absolutely necessary to make the test pass correctly. If you do touch production code, keep the change tiny and explain why in the PR description.

Out of scope

• Do not touch Stripe, payment, or tier logic. The repo owner manages those via Cursor.
• Do not add new features, new routes, or new tests beyond what's needed to fix the one failing test.
• Do not rebase or modify any of PRs Sprint 0: Foundation scaffolding — data model, shared types, feature flags, server stubs, Firestore rules #353–feat: Battle Pass seasonal progression system #358.

Validation

• npm run test:server exits 0 with all 27 tests passing.
• npm run lint is clean.
• PR description names the failing test, explains the root cause, and explains the fix.

The following is the prior conversation context from the user's chat exploration (may be truncated):

User: Take a look at the total repo, and help me figure out what to do next?

Assistant: # What to do next — a triage + roadmap

Here's my read on the current state of the repo and a concrete action plan, ordered by impact and urgency.

Snapshot

Signal	Reading
Repo age	~21 days old, very actively pushed (last commit hours ago)
Visibility	Public, live at punchskater.com, 1 star, single-owner
Open PRs	9 — mostly drafts
Recent merge cadence	High — ~10 PRs merged in the last 24 hours, all small board/card polish via Copilot/Cursor agents
Big in-flight work	A 6-PR "Sprint 0" engagement-loop initiative (PRs #353–#358) sitting in draft
Launch checklist	Has unchecked items in README.md

The picture

You're in a rapid-iteration polish phase on the existing forge (board art, card layout, weather rate limits) while a coordinated "engagement loop" expansion (streaks, missions, weekly heat, battle pass, charge-up) is staged but not landed. That tension is the thing to resolve next.

---

Recommended order of work

1. Triage open PRs first (do this today)

You have 9 open PRs. Decide each:

data:
- url: "https://github.com/driver727-pixel/Punch-Skater/pull/306"
  repository: "driver727-pixel/Punch-Skater"
  state: "open"
  draft: false
  title: "fix: image generation 503 when Firebase Admin is not configured"
  number: 306
  created_at: "2026-04-21T00:00:00Z"
  closed_at: ""
  merged_at: ""
  labels: []
  author: "Copilot"
  comments: 0
- url: "https://github.com/driver727-pixel/Punch-Skater/pull/341"
  repository: "driver727-pixel/Punch-Skater"
  state: "open"
  draft: false
  title: "fix: suppress redundant STRIPE_WEBHOOK_SECRET warning when Stripe is unconfigured"
  number: 341
  created_at: "2026-04-22T00:00:00Z"
  closed_at: ""
  merged_at: ""
  labels: []
  author: "driver727-pixel"
- url: "https://github.com/driver727-pixel/Punch-Skater/pull/353"
  repository: "driver727-pixel/Punch-Skater"
  state: "open"
  draft: true
  title: "Sprint 0: Foundation scaffolding — data model, shared types, feature flags, server stubs, Firestore rules"
  number: 353
  created_at: "2026-04-23T00:00:00Z"
  closed_at: ""
  merged_at: ""
  labels: []
  author: "driver727-pixel"
- url: "https://github.com/driver727-pixel/Punch-Skater/pull/354"
  repository: "driver727-pixel/Punch-Skater"
  state: "open"
  draft: true
  title: "feat: Charge Up system — 8-hour free forge timer with capped rarity"
  number: 354
  created_at: "2026-04-23T00:00:00Z"
  closed_at: ""
  merged_at: ""
  labels: []
  author: "driver727-pixel"
- url: "https://github.com/driver727-pixel/Punch-Skater/pull/355"
  repository: "driver727-p...

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