feat(test): chrome-use test <suite.yaml> — re-runnable browser test suites

Turn repetitive browser checks into unit-test-style YAML suites. Steps reuse
chrome-use's own commands; assertions (url/visible/hidden/text/count/eval)
compile to a single truthy `eval`. The runner re-invokes the binary per step
(inherits all flag/launch/daemon/ref semantics; the daemon stays up so each
step is a fast socket call), launches an isolated browser by default, captures a
screenshot on failure, and exits non-zero for CI. `setup: account:` injects a
cookie-use login. Ships a `test` skill (skills get test). Unit-tested step/assert
compilation.

cli/src/main.rs

@@ -11,6 +11,7 @@ mod install;
 mod native;
 mod output;
 mod skills;
+mod test_runner;
 #[cfg(test)]
 mod test_utils;
 mod upgrade;
@@ -721,6 +722,19 @@ fn main() {
         return;
     }
 
+    // Handle `test <suite.yaml>`: run a browser test suite. It orchestrates by
+    // re-invoking this binary per step, so it lives outside the normal dispatch.
+    if clean.first().map(|s| s.as_str()) == Some("test") {
+        let Some(suite) = clean.get(1) else {
+            eprintln!(
+                "{} usage: chrome-use test <suite.yaml> [--launch | --session <name>]",
+                color::error_indicator()
+            );
+            exit(2);
+        };
+        exit(test_runner::run_test(suite, &flags));
+    }
+
     // Handle skills command (doesn't need daemon)
     if clean.first().map(|s| s.as_str()) == Some("skills") {
         skills::run_skills(&clean, flags.json);