feat(interactive-bash): block tmux output capture commands

Block capture-pane, save-buffer, show-buffer, pipe-pane and their
aliases in interactive_bash tool. Guide users to use bash tool instead
for terminal output capture operations.

- Add BLOCKED_TMUX_SUBCOMMANDS list in constants.ts
- Add input validation in tools.ts to reject blocked commands
- Update tool description with blocked commands documentation

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/tools/interactive-bash/tools.ts

@@ -1,5 +1,5 @@
 import { tool } from "@opencode-ai/plugin/tool"
-import { DEFAULT_TIMEOUT_MS, INTERACTIVE_BASH_DESCRIPTION } from "./constants"
+import { BLOCKED_TMUX_SUBCOMMANDS, DEFAULT_TIMEOUT_MS, INTERACTIVE_BASH_DESCRIPTION } from "./constants"
 import { getCachedTmuxPath } from "./utils"
 
 /**
@@ -62,6 +62,11 @@ export const interactive_bash = tool({
         return "Error: Empty tmux command"
       }
 
+      const subcommand = parts[0].toLowerCase()
+      if (BLOCKED_TMUX_SUBCOMMANDS.includes(subcommand)) {
+        return `Error: '${parts[0]}' is blocked. Use bash tool instead for capturing/printing terminal output.`
+      }
+
       const proc = Bun.spawn([tmuxPath, ...parts], {
         stdout: "pipe",
         stderr: "pipe",