feat(workforce): add ClickHouse workforce analytics contour

adk-rust/crates/aw-workforce-ingest/src/main.rs

@@ -0,0 +1,10 @@
+fn main() {
+    let code = match aw_workforce_ingest::run_from_args() {
+        Ok(()) => 0,
+        Err(err) => {
+            eprintln!("{err:#}");
+            1
+        }
+    };
+    std::process::exit(code);
+}