Added:

- Workspace support (`[workspace]` with deps ordering)
- `clean --all` for workspace members
Changed:
- Project root discovery for `build/run/clean` (searches parent dirs)
- Workspace paths are excluded from root source scan
- Build output now uses a Cargo-style `Compiling <name> v<version>` line
- Build time now reports total time for the whole build stage (workspace included)
- Cache hits are silent (no compile line when nothing is rebuilt)
- Safer build cache: fingerprints include headers and resolved library files

docs/getting-started/build-and-run.md

@@ -37,6 +37,8 @@ Profile-only cleanup:
 ```sh
 dcr clean --debug
 dcr clean --release
+dcr clean --all
+dcr clean --release --all
 ```
 
 ## Notes
@@ -44,3 +46,4 @@ dcr clean --release
 - `run` is unavailable for `build.kind = "staticlib"` and `build.kind = "sharedlib"`.
 - Build profile flag is parsed from the first command argument.
 - Unknown profile flags produce an error.
+- In workspace root, `clean --all` cleans all member projects.