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/reference-and-help/config-reference.md

@@ -24,6 +24,9 @@ as = "string"   # optional
 ar = "string"   # optional
 ld = "string"   # optional
 
+[workspace]
+name = { path = "string", deps = ["string", "..."] }
+
 [dependencies]
 name = {
   path = "string",              # required for each dependency