[Audio] SFX audit — verify all weapons, hazards, and UI have sound

[ryanakann]

Background

As weapons, level objects, and UI screens have been added over time, SFX coverage may have gaps. No systematic audit has been done.

Subsystems:

• Audio (MusicManager, Audio/)
• Player / Gunfish / Gun (Player/, GunfishRigidbody, weapon subclasses)
• Level objects / hazards (LevelObjects/, GameLogic/)
• UI / menus (UI/, GameUIManager)

Problem / Requirement

Missing or placeholder sounds reduce the game's polish. At MAGFest, players will notice silent interactions. Known gap: flop sounds (tracked separately in #73).

Proposed Solution

Systematically test each:

1. All 11 weapon types — fire, hit, reload
2. All major level objects — BoxerCrab strike, cannon fire, sea mine explosion, conveyor belt hum, etc.
3. UI interactions — menu navigation, fish select, match start/end

Document missing sounds and either source/create assets or file sub-issues.

Testing Plan

• Editor Play mode — tested via ▶ in Unity Editor
• All three game modes — each mode's unique interactions tested

Acceptance Criteria

• All weapon fire/hit/reload sounds present
• Major hazard interactions have audio feedback
• Menu navigation and match start/end have audio
• A list of any remaining gaps is documented