feat(cli): auto-cancel dev runs on CLI exit via detached watchdog #4965

Job	Run time
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 18s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 51s
typecheck / typecheck	6m 41s
sdk-compat / Bun Runtime	2m 1s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	3m 48s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 45s
sdk-compat / Cloudflare Workers	2m 6s
sdk-compat / Deno Runtime	2m 2s
units / packages / 🧪 Unit Tests: Packages (1, 1)	9m 4s
sdk-compat / Node.js 20.20 (ubuntu-latest)	2m 7s
sdk-compat / Node.js 22.12 (ubuntu-latest)	2m 3s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 7s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 40s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 4s
units / internal / 🧪 Unit Tests: Internal (4, 8)	5m 41s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 59s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 49s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 28s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	2m 35s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 19s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 52s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	6m 33s
units / internal / 🧪 Unit Tests: Internal (3, 8)	9m 47s
units / internal / 🧪 Unit Tests: Internal (8, 8)	6m 17s
units / internal / 🧪 Unit Tests: Internal (2, 8)	10m 22s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 9s
units / internal / 🧪 Unit Tests: Internal (6, 8)	5m 48s
units / webapp / 📊 Merge Reports	42s
units / packages / 📊 Merge Reports	25s
units / internal / 📊 Merge Reports	24s
	2h 11m 47s

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