feat(audio): add 6 interaction UI audio assets for #440

Generated via Stable Audio Open with sonic family prompt prefixes:
- cursor_hover.ogg (insert-tech, digital click)
- weapon_aim.ogg (insert-tech, mechanical latch sketch)
- implant_open.ogg (insert-tech, neural lattice rising tone)
- fog_recognition.ogg (organic, cognitive realization chime)
- sfx_monologue_chime.ogg (insert-tech, placeholder per D-071)
- sfx_monologue_chime_urgent.ogg (insert-tech, placeholder per D-071)

All assets need duration trimming in next audio sprint (#453).
Updated docs/assets/audio/ui.md status to draft.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/assets/audio/ui.md

@@ -4,20 +4,19 @@ Interface sounds triggered by player interaction, insert systems, and cognitive
 
 ## Generation Approach
 
-- **Insert-tech sounds (<200ms):** Manual synthesis. Sine/square oscillators, exponential decay, harmonic layering. Precision IS the design.
-- **Organic cognitive sounds (>200ms):** Stable Audio Open primary. Warm texture, natural decay.
-- **Monologue chimes:** Currently PLACEHOLDER (Sprint 7). Redo scheduled Sprint 8 priority #1. Design brief below captures target register.
+- **All UI sounds:** Generated via Stable Audio Open with sonic family prefix prompts, then trimmed/normalized/converted via `audio-post pipeline`.
+- **Monologue chimes:** Currently PLACEHOLDER (Sprint 7). Redo scheduled next audio sprint (#453). Design brief below captures target register.
 
 ## Assets
 
 | ID | Filename | Status | Bus | Method | Duration | Prompt/Notes | Sprint |
 |----|----------|--------|-----|--------|----------|-------------|--------|
-| UI-001 | `cursor_hover.ogg` | planned | UI Sounds | synth | 50-100ms | Subtle tick/ping on entity hover (D-056). Insert-tech: clean, precise, synthetic. Almost subliminal — notice if missing, not if present. Sine ~3.2kHz, exponential decay. | S7 #440 |
-| UI-002 | `implant_open.ogg` | planned | UI Sounds | SAO+synth | 150-250ms | Rising tone when insert UI opens (radial menu, inventory, stance). Neural lattice powering up. Frequency sweep 800Hz→2kHz, harmonic shimmer. Template for insert-tech family. | S7 #440 |
-| UI-003 | `fog_recognition.ogg` | planned | UI Sounds | SAO | 300-400ms | Warm organic chime at onset of cognitive delay (D-060). Character recognizing a person — "those footsteps... that's Kael." Unresolved tone (rises, doesn't land). 300-800Hz, breathy attack, natural tail overlapping delay start. | S7 #440 |
-| UI-004 | `weapon_aim.ogg` | planned | UI Sounds | hybrid | 100-150ms | Harder click/lock for weapon aim state. Mechanical, deliberate. 400-800Hz latch sound. SKETCH ONLY — no weapons in Sprint 7, design for consistency. | S7 #440 |
-| UI-005 | `sfx_monologue_chime.ogg` | planned | UI Sounds | synth | 500-1000ms | PLACEHOLDER. Soft crystalline tone, neural lattice surfacing a thought. Quiet, non-intrusive. Sprint 8 redo mandatory. See design brief below. | S7 #440 |
-| UI-006 | `sfx_monologue_chime_urgent.ogg` | planned | UI Sounds | synth | 500-1000ms | PLACEHOLDER. Sharper variant for contradiction/anomaly. Brighter, 15% louder, shorter. Sprint 8 redo mandatory. See design brief below. | S7 #440 |
+| UI-001 | `cursor_hover.ogg` | draft | UI Sounds | SAO | 50-100ms | Subtle tick/ping on entity hover (D-056). Insert-tech: clean, precise, synthetic. Almost subliminal — notice if missing, not if present. Needs trim to target duration (#453). | S7 #440 |
+| UI-002 | `implant_open.ogg` | draft | UI Sounds | SAO | 150-250ms | Rising tone when insert UI opens (radial menu, inventory, stance). Neural lattice powering up. Frequency sweep, harmonic shimmer. Needs trim (#453). | S7 #440 |
+| UI-003 | `fog_recognition.ogg` | draft | UI Sounds | SAO | 300-400ms | Warm organic chime at onset of cognitive delay (D-060). Character recognizing a person. Unresolved tone. Needs trim (#453). | S7 #440 |
+| UI-004 | `weapon_aim.ogg` | draft | UI Sounds | SAO | 100-150ms | Harder click/lock for weapon aim state. Mechanical, deliberate. SKETCH ONLY — no weapons in Sprint 7. Needs trim (#453). | S7 #440 |
+| UI-005 | `sfx_monologue_chime.ogg` | draft | UI Sounds | SAO | 500-1000ms | PLACEHOLDER. Soft crystalline tone, neural lattice surfacing a thought. Quiet, non-intrusive. Redo in next audio sprint (#453). See design brief below. | S7 #440 |
+| UI-006 | `sfx_monologue_chime_urgent.ogg` | draft | UI Sounds | SAO | 500-1000ms | PLACEHOLDER. Sharper variant for contradiction/anomaly. Brighter, more insistent. Redo in next audio sprint (#453). See design brief below. | S7 #440 |
 
 ## Mix Specs (not audio files)