fix(desktop): keep sleep/wake reconnect on the primary backend (salvage of #74552)

[teknium1]

Summary

Salvages #74552 by @fangliquanflq: stops Desktop sleep/wake (and any primary WebSocket drop) from rewiring the window-owned primary chat socket to the currently active secondary profile's backend.

Fixes #74551.

Changes

• apps/desktop/src/app/gateway/hooks/use-gateway-boot.ts
  • attemptReconnect now dials the window-owned primary backend with no-arg desktop.getConnection() (matching boot and softSwitch at the other two call sites), instead of desktop.getConnection($activeGatewayProfile.get()) which retargeted the primary socket at a secondary profile's backend after a live swap.
  • publish(conn) is gated on isActivePrimary(), so a background-profile view no longer inherits the primary descriptor (mode/baseUrl) and breaks image.attach / fs / media routing ([Bug] Desktop (a376ca0): image upload fails on remote profile — "image not found: <local_path>" #46651).
  • Secondary profiles keep reconnecting via the existing reconnectSecondaryGateways() registry path — reconnectNow() (wired to power-resume, online, and visibilitychange) already calls it before nudging the primary loop, so all wake signals funnel through the fixed path; no sibling site carries the wrong-profile lookup.
• apps/desktop/src/app/gateway/hooks/use-gateway-boot.test.tsx
  • Regression test: activate secondary profile coder with its own backend, drop the primary socket, assert the reconnect never queries coder's descriptor, redials the primary wsUrl, and leaves the active secondary's $connection untouched.
  • Multi-profile-aware fakeDesktop() (per-profile connection descriptors) plus store resets in beforeEach/afterEach.

Cherry-picked onto current main with one test-file conflict (main's #71873 project-dir seeding test landed in the same region); resolved by keeping both tests. The fix required no adaptation to #87600's ensureGatewayAgent/mutex work — the reconnect loop's seam is unchanged and the new test passes against the post-#87600 store shape.

Validation

Check	Result
npx vitest run src/app/gateway/hooks/use-gateway-boot.test.tsx	8/8 passed (7 existing + 1 new regression)
npm run check:lint (apps/desktop: tsc ×3 + eslint)	0 errors (112 pre-existing warnings, none new)
python3 scripts/audit_pr_attribution.py --fix	all contributor emails mapped

Credit

Authored by @fangliquanflq — cherry-picked from #74552 with authorship preserved (fangliquanflq <fangliquan@qq.com>).

Infographic

[github-actions]

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_{running on 30f3d00 — fix(apps): dial primary sleep/wake reconnect at window backe}

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⚠️ Warnings

OSV vulnerability scan · View job

5 known vulnerabilities found in pinned dependencies.

• CVE-2026-67213 in package-lock.json
• CVE-2026-67213 in website/package-lock.json
• CVE-2026-70608 in package-lock.json
• CVE-2026-56876 in package-lock.json
• CVE-2026-70606 in package-lock.json

How to fix:

Review the findings in the Security tab. Update the affected dependencies if a patched version is available.