fix: bypass keybinding customization gate for nonessential traffic mode

[VitalyOstanin]

Summary

Custom keybindings from ~/.claude/keybindings.json are silently ignored when CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1. The tengu_keybinding_customization_release feature flag defaults to false without GrowthBook, causing isKeybindingCustomizationEnabled() to block all user keybinding loading.

This patch force-enables the gate function (return !0; before the GrowthBook check), same technique as worktreeMode, voiceMode, and channelsMode patches.

Changes

• keybindingCustomization.ts — patch implementation with idempotency check
• keybindingCustomization.test.ts — tests for success, already-patched, and pattern-not-found
• index.ts — register patch as ALWAYS_APPLIED (no config condition)

Test plan

• pnpm test — 224 tests pass
• pnpm lint — no errors
• Applied to CC 2.1.89 native binary — patch succeeds
• Verified custom keybindings load with CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1

Summary by CodeRabbit

• New Features

  • Added a keybinding customization patch that enables custom keybindings when a specific environment variable is set; it is applied as part of the standard patch flow.

• Tests

  • Added tests validating the patch across patched, unpatched, and non-matching file states.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: a45c7d4d-fd78-4334-8976-546fae5fa4dc

📥 Commits

Reviewing files that changed from the base of the PR and between 71d87e8 and 5ff401d.

📒 Files selected for processing (3)

• src/patches/index.ts
• src/patches/keybindingCustomization.test.ts
• src/patches/keybindingCustomization.ts

✅ Files skipped from review due to trivial changes (2)

• src/patches/index.ts
• src/patches/keybindingCustomization.test.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• src/patches/keybindingCustomization.ts

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📝 Walkthrough

Walkthrough

A new patch, keybinding-customization, was added and registered to always apply. It injects return !0; into a detected keybinding gate in target files via writeKeybindingCustomization, with tests covering successful patching, idempotency, and missing-pattern behavior.

Changes

Cohort / File(s)	Summary
Patch Registration src/patches/index.ts	Registered new keybinding-customization patch under PatchGroup.ALWAYS_APPLIED and wired writeKeybindingCustomization into patchImplementations.
Implementation src/patches/keybindingCustomization.ts	Added `writeKeybindingCustomization(oldFile: string): string
Tests src/patches/keybindingCustomization.test.ts	Added tests validating successful patch insertion, idempotent behavior when already patched, and null return when pattern absent.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• Add channels mode patch (tengu_harbor bypass) #653: Adds a new patch implementation and registers it in src/patches/index.ts, similar wiring pattern to this change.

Suggested reviewers

• bl-ue
• georpar

Poem

🐰 I hopped through code, a nibble and a twitch,
Slipped return !0; where the gate made a hitch.
Tests checked my burrow—three hops, all clear,
Patch applied, idempotent, nothing to fear. 🥕✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding a patch to bypass the keybinding customization gate when nonessential traffic is disabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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