fixes and possible wip gui_2/theme_2 for multi-viewport support

shell_runner.py

@@ -1,5 +1,4 @@
-import subprocess
-import shlex
+import subprocess, shutil
 from pathlib import Path
 
 TIMEOUT_SECONDS = 60
@@ -10,27 +9,20 @@ def run_powershell(script: str, base_dir: str) -> str:
     Returns a string combining stdout, stderr, and exit code.
     Raises nothing - all errors are captured into the return string.
     """
-    # Prepend Set-Location so the AI doesn't need to worry about cwd
     full_script = f"Set-Location -LiteralPath '{base_dir}'\n{script}"
-
+    # Try common executable names
+    exe = next((x for x in ["powershell.exe", "pwsh.exe", "powershell", "pwsh"] if shutil.which(x)), None)
+    if not exe: return "ERROR: Neither powershell nor pwsh found in PATH"
+    
     try:
-        result = subprocess.run(
-            ["powershell", "-NoProfile", "-NonInteractive", "-Command", full_script],
-            capture_output=True,
-            text=True,
-            timeout=TIMEOUT_SECONDS,
-            cwd=base_dir
+        r = subprocess.run(
+            [exe, "-NoProfile", "-NonInteractive", "-Command", full_script],
+            capture_output=True, text=True, timeout=TIMEOUT_SECONDS, cwd=base_dir
         )
         parts = []
-        if result.stdout.strip():
-            parts.append(f"STDOUT:\n{result.stdout.strip()}")
-        if result.stderr.strip():
-            parts.append(f"STDERR:\n{result.stderr.strip()}")
-        parts.append(f"EXIT CODE: {result.returncode}")
-        return "\n".join(parts) if parts else f"EXIT CODE: {result.returncode}"
-    except subprocess.TimeoutExpired:
-        return f"ERROR: command timed out after {TIMEOUT_SECONDS}s"
-    except FileNotFoundError:
-        return "ERROR: powershell executable not found"
-    except Exception as e:
-        return f"ERROR: {e}"
+        if r.stdout.strip(): parts.append(f"STDOUT:\n{r.stdout.strip()}")
+        if r.stderr.strip(): parts.append(f"STDERR:\n{r.stderr.strip()}")
+        parts.append(f"EXIT CODE: {r.returncode}")
+        return "\n".join(parts)
+    except subprocess.TimeoutExpired: return f"ERROR: timed out after {TIMEOUT_SECONDS}s"
+    except Exception as e: return f"ERROR: {e}"