docs: reorganize documentation structure

docs/tools/bash.md

@@ -0,0 +1,32 @@
+---
+summary: "Bash tool usage, stdin modes, and TTY support"
+read_when:
+  - Using or modifying the bash tool
+  - Debugging stdin or TTY behavior
+---
+
+# Bash tool
+
+Run shell commands in the workspace. Supports foreground + background execution via `process`.
+
+## Parameters
+
+- `command` (required)
+- `yieldMs` (default 10000): auto-background after delay
+- `background` (bool): background immediately
+- `timeout` (seconds, default 1800): kill on expiry
+- `elevated` (bool): run on host if elevated mode is enabled/allowed
+- Need a real TTY? Use the tmux skill.
+
+## Examples
+
+Foreground:
+```json
+{"tool":"bash","command":"ls -la"}
+```
+
+Background + poll:
+```json
+{"tool":"bash","command":"npm run build","yieldMs":1000}
+{"tool":"process","action":"poll","sessionId":"<id>"}
+```