fix(connect): PR #1758 CodeRabbit follow-up: connector status hardening, i18n strings, doc alignment (#2098)

* fix(connect): PR #1758 CodeRabbit follow-up: harden connector status, i18n the connector-mode strings, align docs

- getConnectorConfig() rebuilds baseUrl as origin + path: userinfo, query
  and fragment are stripped (warn-logged without the raw value) so nothing
  secret-shaped pasted into GNUBOK_CONNECT_URL survives into the
  /api/connector/status echo or the derived proxy URLs (CWE-200)
- /api/connector/status responds Cache-Control: no-store on both branches
  (key prefix + wiring layout out of shared browser caches, CWE-525)
- CWE-319 thread verified as no-change: both connector-mode helpers derive
  from getConnectorConfig(), which fails closed on non-https
- SkatteverketConnectPanel tooltips and BankSyncNowButton gate/upsell
  strings moved to messages/sv.json + messages/en.json keys
- DECISIONS.md: MD037 fix on line 1146 (backtick the glob), line 1147
  reworded to grants-written-wiring-pending, decision lines appended
  (incl. declining the UpgradeNote children-append suggestion)
- docs/SOVEREIGN.md availability wording aligned with SELF-HOSTING.md:
  infra merged, keys issued manually on request, client wiring pending

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UKZUp1nePr8sVDoLkMSxbS

* docs(connect): skeptic follow-up: bank client wiring is merged (#2094), SKV pending, no keys issued until it lands

Skeptic refutation on PR #2098: SOVEREIGN.md claimed the services 'do not
carry traffic' while this branch already contains #2094 (EB client proxy
routing), and 'issued manually on request' contradicted the standing
no-key-before-full-PR6b rule while skatteverketConnectorMode() has no
client consumer yet. SOVEREIGN.md, SELF-HOSTING.md and DECISIONS.md line
1147 now all say: bank client wiring merged and carries traffic with a
key, Skatteverket client wiring ships in a following release, keys are
not issued until it lands.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UKZUp1nePr8sVDoLkMSxbS

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

lib/connect/instance/__tests__/config.test.ts

@@ -27,6 +27,25 @@ describe('getConnectorConfig', () => {
     }
   })
 
+  it('strips userinfo, query and fragment from the base URL (status echoes it back)', () => {
+    vi.stubEnv('GNUBOK_CONNECTOR_KEY', 'gnubok_ck_x')
+    for (const [dirty, clean] of [
+      ['https://user:secret@connect.example.se', 'https://connect.example.se'],
+      ['https://connect.example.se?token=secret', 'https://connect.example.se'],
+      ['https://connect.example.se/base#fragment', 'https://connect.example.se/base'],
+      ['https://user:secret@connect.example.se/base/?token=s#f', 'https://connect.example.se/base'],
+    ]) {
+      vi.stubEnv('GNUBOK_CONNECT_URL', dirty)
+      expect(getConnectorConfig()?.baseUrl, dirty).toBe(clean)
+    }
+  })
+
+  it('keeps a clean override byte-identical (no surprise normalization)', () => {
+    vi.stubEnv('GNUBOK_CONNECTOR_KEY', 'gnubok_ck_x')
+    vi.stubEnv('GNUBOK_CONNECT_URL', 'https://connect.example.se/base')
+    expect(getConnectorConfig()?.baseUrl).toBe('https://connect.example.se/base')
+  })
+
   it('allows plain http for loopback development hosts only', () => {
     vi.stubEnv('GNUBOK_CONNECTOR_KEY', 'gnubok_ck_x')
     for (const ok of ['http://localhost:3000', 'http://127.0.0.1:3000']) {