Fix medium-severity spec drift across 17 specs

- authentication-methods: document completeAuth mode param ("redirect"|"json");
  clarify add-passkey nudge (no dismiss mechanism, disappears on passkey add)
- journal-auth: session maxAge is 30 days; terms allow-list uses /legal/ prefix
  matching (broader than fixed list of paths)
- session-notes: mark awareness isolation and UndoManager isolation as not yet
  implemented (shared instances in current code)
- activity-feed: add fan-out scenario for visibility change to public
- explore: note that ?perPage is not yet implemented (hardcoded page size)
- multi-day-routes: add per-day GPX track split scenario (splitByDays option);
  document overnight vs isDayBreak naming gap
- osm-poi-overlays: debounce is 800ms + 2000ms min interval (not 500ms);
  retry is not automatic (fires on next viewport change)
- brouter-integration: rate limit corrected to 300/hour; add segment-cache
  requirement (client caches per-pair segments)
- wahoo-route-push: OAuth state shape uses camelCase (returnTo, pushAfter
  object) not snake_case with push_after boolean
- komoot-import: document noop adapter / ConnectedServiceManager bypass;
  note four Komoot-specific routes that bypass the generic OAuth framework
- background-jobs: exponential backoff not wired (retryLimit only); add SIGINT
- connected-services: add revoked status; name ConnectionNotActiveError
- infrastructure: add INTEGRATION_SECRET and SENTRY_DSN to env var lists;
  split secret decryption scenario by workflow (cd-apps vs cd-infra)
- secret-management: correct CD decryption — cd-apps only decrypts app.env;
  cd-infra decrypts both
- transactional-emails: welcome email is async (pg-boss job); magic-link email
  includes 6-digit numeric code
- journal-route-detail: websites are https: links (not mailto:); opening_hours
  is also displayed
- local-dev-environment: add mobile app (Expo) dev commands

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

openspec/specs/background-jobs/spec.md

@@ -12,7 +12,7 @@ The `@trails-cool/jobs` package SHALL initialize a pg-boss instance using the ap
 - **THEN** pg-boss connects to PostgreSQL, creates/migrates the `pgboss` schema if needed, and begins polling for jobs
 
 #### Scenario: Worker stops on shutdown
-- **WHEN** the server process receives SIGTERM
+- **WHEN** the server process receives SIGTERM or SIGINT
 - **THEN** pg-boss completes any in-progress jobs and stops gracefully before the process exits
 
 ### Requirement: Cron job scheduling
@@ -27,11 +27,11 @@ The system SHALL support registering recurring jobs with cron expressions.
 - **THEN** existing cron schedules persist and continue firing without re-registration conflicts
 
 ### Requirement: Job retry policy
-Jobs SHALL support configurable retry policies with exponential backoff.
+Jobs SHALL support configurable retry limits. The `JobDefinition` type exposes `retryLimit` and `expireInSeconds`; exponential backoff (`retryDelay`/`retryBackoff` in pg-boss terms) is not currently wired.
 
 #### Scenario: Transient failure retry
 - **WHEN** a job handler throws an error
-- **THEN** pg-boss retries the job up to the configured retry limit with exponential backoff
+- **THEN** pg-boss retries the job up to the configured `retryLimit`
 
 #### Scenario: Permanent failure
 - **WHEN** a job exhausts all retries