refactor: Migrate bug patterns to AST-based analyzer and fix namespace inconsistencies

Bug Pattern Analyzer Migration (V1 → V2):
- Migrated 6 patterns to AST-based detection using ts-morph
- Added 2 new patterns: missing-multiplayer-sync, namespace-inconsistency
- Deprecated 2 patterns: silent-instrument, unstable-callback-in-effect
- Fixed false positive issues with regex-based detection

Namespace Consistency Fixes (14 issues resolved):
- advancedSynth.ts: isAdvancedSynth() now uses parseInstrumentId()
- toneSynths.ts: isToneSynth() now uses parseInstrumentId()
- scheduler.ts: Refactored if-else chain to switch statement
- midiExport.ts: Uses parseInstrumentId() with MIDI-specific mic: handling

The mic: prefix is intentionally handled as a special case in MIDI export
(treated as drums on channel 10) rather than added to instrument-types.ts,
since it's specific to MIDI export functionality.

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: adewale