ci: fix mac runner config YAML and simplify setup to copy static config instead of generate+patch

scripts/runner-config-mac.yaml

@@ -3,9 +3,8 @@ log:
 
 runner:
   file: .runner
-  # Keep capacity at 1 — iOS builds are heavy, no benefit running in parallel on one machine
   capacity: 1
-  envs:
+  envs: {}
   env_file: .env
   timeout: 3h
   shutdown_timeout: 0s
@@ -19,22 +18,16 @@ runner:
 
 cache:
   enabled: true
-  # Cache data stored in act_runner working directory
   dir: ""
-  # Must be the LAN IP of this Mac — job processes connect back to this address.
-  # Run: ipconfig getifaddr en0
-  # Replace with your actual LAN IP before starting the runner.
-  host: "192.168.1.100"
+  host: "__HOST_IP__"
   port: 8088
   external_server: ""
 
 container:
-  # Not used — all jobs run on host (macos-latest:host label).
-  # These settings are inert but kept for completeness.
   network: ""
   privileged: false
-  options:
-  workdir_parent:
+  options: ""
+  workdir_parent: ""
   valid_volumes: []
   docker_host: ""
   force_pull: false
@@ -43,6 +36,4 @@ container:
   docker_timeout: 0s
 
 host:
-  # Working directory for host-mode jobs.
-  # If empty, $HOME/.cache/act/ is used.
-  workdir_parent:
+  workdir_parent: ""