Inline tree-sitter wasm and add runtime fallback (#11157)

docs/cli/commands.md

@@ -292,8 +292,9 @@ Gemini CLI.
 
 - **`!<shell_command>`**
   - **Description:** Execute the given `<shell_command>` using `bash` on
-    Linux/macOS or `cmd.exe` on Windows. Any output or errors from the command
-    are displayed in the terminal.
+    Linux/macOS or `powershell.exe -NoProfile -Command` on Windows (unless you
+    override `ComSpec`). Any output or errors from the command are displayed in
+    the terminal.
   - **Examples:**
     - `!ls -la` (executes `ls -la` and returns to Gemini CLI)
     - `!git status` (executes `git status` and returns to Gemini CLI)