Add paired audio models for G028_elemental_greenhouse (20261105)

outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_001/audio__sfx_eleven_v2.wav

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outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_001/audio__sfx_stable_audio_3_large.wav

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outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_001/meta.json

@@ -137,5 +137,114 @@
     "issues": [],
     "authorization_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_completion_authorization.json",
     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
+  },
+  "model_comparison": {
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+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
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+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
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+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
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+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Frost tower shot with crystal chime and mist hiss",
+        "actual_prompt_or_text": "Frost tower shot with crystal chime and mist hiss. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Frost tower shot with crystal chime and mist hiss. Clear isolated sound starting promptly and ending naturally.",
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+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
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+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
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+      {
+        "method_key": "sfx_stable_audio_3_large",
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+        "variant": "default",
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+        "actual_prompt_or_text": "Frost tower shot with crystal chime and mist hiss. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Frost tower shot with crystal chime and mist hiss. Clear isolated sound starting promptly and ending naturally.",
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+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
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+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.556391
+      }
+    ]
   }
 }

outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_002/audio__sfx_eleven_v2.wav

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outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_002/audio__sfx_stable_audio_3_large.wav

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outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_002/meta.json

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     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
+  },
+  "model_comparison": {
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+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
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+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
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+        "requested_duration_equal": false
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+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
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+      {
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+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
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+        "original_task_prompt_or_text": "Flame tower ignition burst with low whoosh",
+        "actual_prompt_or_text": "A gas flame starts once: a quick airy low whoosh followed by a brief warm flutter. Isolated sound effect.",
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+          "prompt": "A gas flame starts once: a quick airy low whoosh followed by a brief warm flutter. Isolated sound effect.",
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+    ]
   }
 }

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outputs/G028_elemental_greenhouse/assets/audio/G028_sfx_003/meta.json

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     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
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 }

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