Require Node.js 22+

Needs a temporary env var for the tasks, until a larger dependency
update

AGENTS.md

@@ -14,7 +14,7 @@ Unhosted Ember.js Web UI for [Kosmos Kredits](https://wiki.kosmos.org/Kredits)
 - **ethers 5** + **@kredits/contracts** for on-chain reads/writes
 - **ember-concurrency** for async sync tasks; **Ember Services** for state (no Redux, no Ember Data)
 - **QUnit** + qunit-dom + fetch-mock for tests
-- **Node 16** (`.nvmrc`); `>= 14` in engines
+- **Node 22** (`.nvmrc`); `>= 22` in engines
 
 ## Commands
 
@@ -22,8 +22,7 @@ Unhosted Ember.js Web UI for [Kosmos Kredits](https://wiki.kosmos.org/Kredits)
 |---|---|
 | Dev server (RSK testnet) | `npm start` |
 | Dev against local Hardhat devchain | `npm run start:local` |
-| Full lint + test pipeline (CI) | `npm test` |
-| Ember/QUnit suite only | `npm run test:ember` |
+| Ember/QUnit suite (all tests) | `ember test` |
 | Interactive test runner | `ember test --server` |
 | All linters | `npm run lint` |
 | Lint JS (autofix) | `npm run lint:js -- --fix` |
@@ -91,7 +90,7 @@ Read in `config/environment.js` (lines ~102–110). No `.env.example` (`.gitigno
 
 - **Framework**: QUnit via `ember-qunit` + `qunit-dom`; `@ember/test-helpers` (`render`, `click`, `fillIn`).
 - **HTTP mocking**: `fetch-mock` — `tests/test-helper.js` mocks Bitstamp ticker endpoints globally.
-- **Runner**: headless Chrome (`testem.js`); CI uses Node 16 via `.github/workflows/ci.yml`.
+- **Runner**: headless Chrome (`testem.js`); CI uses Node 22 via `.gitea/workflows/ci.yaml`.
 - **File patterns**:
   - `tests/unit/<type>/<name>-test.js` — unit tests for services, controllers, routes, models, helpers, utils.
   - `tests/integration/components/<name>/component-test.js` — component rendering tests (PODS layout).
@@ -102,6 +101,7 @@ Read in `config/environment.js` (lines ~102–110). No `.env.example` (`.gitigno
 ## Gotchas
 
 - **Mid-migration codebase**: classic and Octane component styles coexist. Linters warn (not error) on legacy patterns; `.template-lintrc.js` keeps a `pending` list of templates still using `{{action}}`.
+- **OpenSSL on Node 17+**: `ember-auto-import@1` bundles webpack 4, which hashes with MD4 — dropped by OpenSSL 3 in Node 17+. The `npm` scripts (`start`, `test`, `build`, `build-prod`, `start:local`) prepend `NODE_OPTIONS=--openssl-legacy-provider` to work around this. Direct `npx ember ...` invocations must set the flag manually. Remove once ember-auto-import is upgraded to v2+.
 - **`release/` is committed build output** — don't hand-edit; regenerated by `npm run build-prod` (auto-staged on `npm version`).
 - **Deployment is `git push 5apps master`** (5apps static hosting) — pushing to `master` triggers a deploy. Be deliberate about commits/pushes.
 - **No `.env.example`** — set `WEB3_*` vars inline (see `npm run start:local` for the pattern).