fix: [1095] キーコンフィグ画面の初期矢印色が想定通りにならない問題を修正

[cwtickle]

🔨 変更内容 / Details of Changes

1. キーコンフィグ画面の初期矢印色が想定通りにならない問題を修正

• カスタムキーで保存されたキーパターンが正しく取得できず、キーコンフィグ画面の初期矢印色が想定通りにならない問題を修正しました。

🔖 関連Issue, 変更理由 / Related Issues, Reason for Changes

1. カスタムキーの場合、保存されているキーパターンの変数が通常と異なるため。
   PR feat: [1094] 色変化(ncolor_data)の0フレーム時の色をキーコンフィグ画面に一部反映する仕様を追加 #2117 の考慮漏れです。

📷 スクリーンショット / Screenshot

📝 その他コメント / Other Comments

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 2828f11a-b947-45a8-a623-2a92ef20af86

📥 Commits

Reviewing files that changed from the base of the PR and between cfce877 and 43c5d1f.

📒 Files selected for processing (1)

• js/danoni_main.js

📝 Walkthrough

Walkthrough

getKeyConfigColor() in keyConfigInit() now determines its storage source conditionally based on extraKeyFlg, attempting key-specific color pattern retrieval with fallback to generic pattern when colorGroupNum === -1.

Changes

Key Configuration Color Storage

Layer / File(s)	Summary
Color configuration storage reference refactoring js/danoni_main.js	baseGroupNum calculation switches between g_localStorage and g_localKeyStorage based on g_stateObj.extraKeyFlg, and prioritizes keyCtrlPtn${currentKey} with fallback to keyCtrlPtn when retrieving color control pattern data.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• cwtickle/danoniplus#2117: Both PRs modify color group and base color reference logic in getKeyConfigColor() within keyConfigInit() in js/danoni_main.js.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main fix: addressing an issue where the initial arrow color in the key config screen was not displaying as expected, which directly matches the changeset's purpose of correcting key pattern retrieval for custom keys.
Description check	✅ Passed	The description is directly related to the changeset, explaining the problem (custom key patterns not retrieved correctly), the impact (incorrect initial arrow colors), and the root cause (variable difference in custom keys, oversight from PR #2117).
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch hotfix/1095-keycon-color-ex

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[cwtickle]

@coderabbitai review

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@js/danoni_main.js`:
- Around line 9545-9547: The baseGroupNum calculation uses || which treats a
valid 0 pattern as falsy and falls back incorrectly; update the expression in
the block that computes baseGroupNum (referencing storageObj,
g_keyObj.currentKey, keyCtrlPtn${g_keyObj.currentKey} and keyCtrlPtn) to use
nullish coalescing (??) instead of || so that 0 is preserved as a valid index
when g_keycons.colorGroupNum === -1; ensure both optional accesses use ?? to
fall back only on null/undefined.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 18dfdea6-281e-4e4b-808a-3aa5c3f55237

📥 Commits

Reviewing files that changed from the base of the PR and between fbebc32 and cfce877.

📒 Files selected for processing (1)

• js/danoni_main.js