test(#4516): migrate per-runtime install/upgrade adapters to named timeout constants (#4582)

Batch 5 of the ad hoc timeout literal migration (epic #4445). Replaces
every bare numeric timeout/timeoutMs object-literal property across
tests/augment-upgrades.test.cjs, tests/shared-hooks-dir-resolution.test.cjs,
tests/antigravity-upgrades.test.cjs, tests/cursor-hooks.test.cjs,
tests/cursor-hook-workspace-roots.test.cjs, tests/gemini-runtime-removed.test.cjs,
tests/kilo-upgrades.test.cjs, tests/kimi-upgrades.test.cjs,
tests/kimi-variant-disambiguation.test.cjs, tests/opencode-plugin-adapter.test.cjs,
tests/windsurf-hooks-bridge.test.cjs, tests/effort-sync-installed-runtime.test.cjs,
and tests/hooks-commonjs-marker.test.cjs with a named constant, per
eslint-rules/no-adhoc-timeout-literal.cjs. Removes these 13 files from the
rule's allowlist.

Adds one new shared constant to tests/helpers/timeouts.cjs for spawning a
single already-staged hook script directly (a heavier class than the
existing quick-spawn norm), shared across three files in this batch. One
new file-local constant covers a property-test driver process distinct
from any existing class. Every other site reuses an existing shared norm.
No src/bin file touched, no numeric timeout value changed anywhere.

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

tests/effort-sync-installed-runtime.test.cjs

@@ -26,6 +26,7 @@ const { runNode } = require('./helpers/process-seam.cjs');
 
 const { runMinimalInstall } = require('./helpers/install-shared.cjs');
 const { cleanup } = require('./helpers.cjs');
+const { PROBE_TIMEOUT_MS } = require('./helpers/timeouts.cjs');
 
 // Absolute path to the built module, spawned in a child process below so the
 // JSON `cmdEffortSync` writes straight to fd 1 (via io.cjs's writeAllSync) can
@@ -53,7 +54,7 @@ describe('#2071: effort sync runs in an installed runtime (no package-root bin/i
       const gsdTools = path.join(configDir, 'gsd-core', 'bin', 'gsd-tools.cjs');
       const result = runNode(
         [gsdTools, 'effort', 'sync', '--config-dir', configDir],
-        { cwd: root, env: { ...process.env, HOME: root }, timeoutMs: 15000 },
+        { cwd: root, env: { ...process.env, HOME: root }, timeoutMs: PROBE_TIMEOUT_MS },
       );
       const combined = `${result.stdout || ''}${result.stderr || ''}`;