docs: 'uc docs' command to generate CLI reference docs

website/docs/9-cli-reference/uc_build.md

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+# uc build
+
+Build services from a Compose file.
+
+```
+uc build [FLAGS] [SERVICE...] [flags]
+```
+
+## Options
+
+```
+  -f, --file strings      One or more Compose files to build (default compose.yaml)
+  -h, --help              help for build
+  -n, --no-cache          Do not use cache when building images. (default false)
+  -p, --profile strings   One or more Compose profiles to enable.
+  -P, --push              Push built images to the registry after building. (default false)
+```
+
+## Options inherited from parent commands
+
+```
+      --connect string          Connect to a remote cluster machine without using the Uncloud configuration file.
+                                Format: [ssh://]user@host[:port] or tcp://host:port
+      --uncloud-config string   Path to the Uncloud configuration file. (default "~/.config/uncloud/config.yaml")
+```
+
+## See also
+
+* [uc](uc.md)	 - A CLI tool for managing Uncloud resources such as clusters, machines, and services.
+