fix: use POSIX-compatible sh -c instead of dash-specific -lc in cron scheduler (#4209)

install.sh

@@ -1448,6 +1448,25 @@ else
   step_dot "Skipping install"
 fi
 
+# --- Build web dashboard ---
+if [[ "$SKIP_BUILD" == false && -d "$WORK_DIR/web" ]]; then
+  if have_cmd node && have_cmd npm; then
+    step_dot "Building web dashboard"
+    if (cd "$WORK_DIR/web" && npm ci --ignore-scripts 2>/dev/null && npm run build 2>/dev/null); then
+      step_ok "Web dashboard built"
+    else
+      warn "Web dashboard build failed — dashboard will not be available"
+    fi
+  else
+    warn "node/npm not found — skipping web dashboard build"
+    warn "Install Node.js (>=18) and re-run, or build manually: cd web && npm ci && npm run build"
+  fi
+else
+  if [[ "$SKIP_BUILD" == true ]]; then
+    step_dot "Skipping web dashboard build"
+  fi
+fi
+
 ZEROCLAW_BIN=""
 if [[ -x "$HOME/.cargo/bin/zeroclaw" ]]; then
   ZEROCLAW_BIN="$HOME/.cargo/bin/zeroclaw"

src/service/mod.rs

@@ -1236,7 +1236,7 @@ mod tests {
     #[cfg(not(target_os = "windows"))]
     #[test]
     fn run_capture_reads_stdout() {
-        let out = run_capture(Command::new("sh").args(["-lc", "echo hello"]))
+        let out = run_capture(Command::new("sh").args(["-c", "echo hello"]))
             .expect("stdout capture should succeed");
         assert_eq!(out.trim(), "hello");
     }
@@ -1244,7 +1244,7 @@ mod tests {
     #[cfg(not(target_os = "windows"))]
     #[test]
     fn run_capture_falls_back_to_stderr() {
-        let out = run_capture(Command::new("sh").args(["-lc", "echo warn 1>&2"]))
+        let out = run_capture(Command::new("sh").args(["-c", "echo warn 1>&2"]))
             .expect("stderr capture should succeed");
         assert_eq!(out.trim(), "warn");
     }
@@ -1252,7 +1252,7 @@ mod tests {
     #[cfg(not(target_os = "windows"))]
     #[test]
     fn run_checked_errors_on_non_zero_status() {
-        let err = run_checked(Command::new("sh").args(["-lc", "exit 17"]))
+        let err = run_checked(Command::new("sh").args(["-c", "exit 17"]))
             .expect_err("non-zero exit should error");
         assert!(err.to_string().contains("Command failed"));
     }