refactor(webui): inline deployment creation & rename schedule → deployment #137

Job	Run time
Package compatibility / Node 22	31s
Package compatibility / Node 24	22s
Prepare verification matrix	5s
Verify / lint-changed	9s
Verify / audit	7s
Verify / lint	8s
Verify / architecture	14s
Verify / test	30s
Verify / typecheck	39s
Verify / build-webui	11s
Gate	3s
	2m 59s

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