[Bug] Bash tool executes commands multiple times with duplicate outputs

Bug Description
WHAT ON GOD'S GREEN EARTH DID Y'ALL DO TO THE HARNESS?

Bash(true)
⎿  (No output)

⏺ Bash(true)
⎿  (No output)

⏺ Bash(true)
⎿  (No output)

⏺ Bash(echo ok)
⎿  ok

⏺ Bash(echo ok)
⎿  ok

⏺ Bash(echo ok)
⎿  ok

⏺ Bash(echo ok)
⎿  ok

⏺ Bash(echo "test-$(whoami)")
⎿  test-stevenims

⏺ Bash(echo "test marker 42")
⎿  test marker 42

Read 2 files (ctrl+o to expand)

⏺ Bash(echo alive)
⎿  alive

⏺ Bash(echo alive)
⎿  alive

⏺ Bash(echo alive)
⎿  alive

⏺ Bash(echo alive)
⎿  alive

⏺ Bash(echo alive)
⎿  alive

⏺ Bash(echo recovery-check)
⎿  recovery-check

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.158
• Feedback ID: ff1c98e7-89c4-4108-a6cf-aef5342ddbc3

Errors

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