[Feature Request] Add setting to disable auto-generated terminal tab titles

Bug Description
Feature request: setting to disable auto-generated tab title

Please add a setting (e.g., disableAutoTitle: true in settings.json or env var CLAUDE_CODE_DISABLE_TERMINAL_TITLE=1) to suppress Claude Code's automatic topic-based terminal title updates.

Use case: I run ~12 Claude Code instances across different repos in Ghostty tabs. I wired UserPromptSubmit / Stop / Notification hooks that emit OSC 0 sequences so each tab shows 🟢 cwd / 🟡 cwd / 🔴 cwd and I can glance at the tab bar to see which Claude is working, idle, or blocked on me. Hooks fire correctly,
but the auto-topic title overwrites the tab title mid-turn, wiping the status prefix.

No hook event fires after auto-title is set, so I can't re-emit to win the race. The only workaround is to disable auto-title.

Already requested in #21677, #23355, #39785, #44590 — please prioritize.

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.126
• Feedback ID: 69651bb7-077d-48cd-8372-c41508fa76bf

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/VJ/.local/share/claude/versions/2.1.126 (expected in multi-process scenarios)\n    at r86 (/$bunfs/root/src/entrypoints/cli.js:2768:2177)\n    at HD8 (/$bunfs/root/src/entrypoints/cli.js:2768:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T15:12:58.307Z"}]