Remove unused segmentCounter from AudioSegmentProcessor

[ysdede]

🎯 What: The code health issue addressed
Removed the unused segmentCounter field from AudioSegmentProcessor.ts.

💡 Why: How this improves maintainability
Dead code can be confusing and misleading. Removing it makes the code cleaner and easier to understand.

✅ Verification: How you confirmed the change is safe

• Verified that segmentCounter is not used anywhere else in the file using grep.
• Ran bun test src/lib/audio/AudioSegmentProcessor.test.ts and all tests passed.

✨ Result: The improvement achieved
Cleaner AudioSegmentProcessor.ts without unused fields.

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PR created automatically by Jules for task 5248757146693136409 started by @ysdede

[ysdede]

Review Summary (Post r1→master merge)

Status: ✅ MERGEABLE — Safe to merge into staging

Changes: Removes unused segmentCounter field from AudioSegmentProcessor state. Two-line diff removing the field declaration and initialization.

Assessment: Clean dead-code removal. The segmentCounter was never read or used after being initialized. This is a safe, low-risk cleanup.

Recommendation: ✅ Merge — Trivial cleanup, no functional impact.

[google-labs-jules]

Review Summary (Post r1→master merge)

Status: ✅ MERGEABLE — Safe to merge into staging

Changes: Removes unused segmentCounter field from AudioSegmentProcessor state. Two-line diff removing the field declaration and initialization.

Assessment: Clean dead-code removal. The segmentCounter was never read or used after being initialized. This is a safe, low-risk cleanup.

Recommendation: ✅ Merge — Trivial cleanup, no functional impact.

Acknowledged. Thank you for the review.