{"job_id":"anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f","request_id":"test-physics-coulomb-1b2ba770-6450-4b1c-a815-8b28db3d7c87-1778704510421","status":"complete","asset":{"primary_url":"https://storage.googleapis.com/pupiltree-animation-assets/anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f/walkthrough.mp4","thumbnail_url":"https://storage.googleapis.com/pupiltree-animation-assets/anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f/thumb.jpg","transcript_url":"https://storage.googleapis.com/pupiltree-animation-assets/anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f/transcript.vtt","interactive_url":"https://storage.googleapis.com/pupiltree-animation-assets/anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f/index.html","scenefile_url":"https://storage.googleapis.com/pupiltree-animation-assets/anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f/scene-source.json","duration_seconds":15,"byte_size":509453,"renderer":"html_three_js_local","parameters":{"style":"auto","executor":"native_render_executor","localPath":"/app/storage/assets/anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f","control_count":3,"interactivity":"none","simulation_id":"physics.12.electrostatics.coulomb_field_lines","renderer_style":"three_js","durationSeconds":15,"render_manifest":{"jobId":"anim-job-a69f74f2-6486-43c6-9166-d42a0d88f99f","request":{"gap":{"topic":"coulomb-field-lines","severity":"dangerous","error_type":"concept_misunderstanding","memory_state":"fragile","display_topic":"Coulomb 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Lines"},{"label":"Mistake","visual":"Show the wrong approach and why it seems plausible.","narration":"Field strength does not change with distance."},{"label":"Correction","visual":"Show the right approach step by step.","narration":"Coulomb force scales with charge product and inverse square of distance."},{"label":"Concept","visual":"Highlight the key formula and the governing relationship.","narration":"Coulomb. field lines"}],"title":"Coulomb Law Field Lines","sceneCode":"<!doctype html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"utf-8\"/>\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"/>\n  <title>Coulomb's Law: Field Strength vs Distance</title>\n  <style>\n    :root{--bg:#0f1418;--panel:#182228;--line:#2e3e46;--accent:#e5ba67;--text:#f4f1ea;--muted:#c8d4da;--blue:#63b3ff;--green:#87e8a8;--red:#de7f76;}\n    *{box-sizing:border-box;}\n    body{margin:0;font-family:\"Plus Jakarta 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18px;padding:0;color:var(--muted);display:grid;gap:6px;}\n    .stage{width:min(1020px,95%);aspect-ratio:16/9;border:1px solid #445862;border-radius:14px;position:relative;overflow:hidden;background:radial-gradient(circle at 50% 38%,#2f4a57,#0f1418 72%);box-shadow:0 18px 60px rgba(0,0,0,.45), inset 0 0 90px rgba(255,255,255,.03);}\n    .stage::before{content:\"\";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.06),transparent 34%);pointer-events:none;}\n    .legend{position:absolute;right:12px;top:12px;padding:8px 10px;border-radius:10px;border:1px solid #465a64;background:rgba(9,14,18,.58);font-size:0.8rem;color:var(--muted);backdrop-filter:blur(4px);}\n    @media(max-width:900px){main{grid-template-columns:1fr;}aside{border-right:0;border-bottom:1px solid var(--line);}}\n  </style>\n</head>\n<body>\n<main>\n  <aside>\n    <h1>Coulomb's Law</h1>\n    <p class=\"sub\">Field strength DOES change with distance — inversely with the square!</p>\n    <p class=\"formula\">F = k·q₁·q₂ / r²</p>\n    <label class=\"control\"><span>Charge q₁: <strong id=\"v-q1\">2</strong> μC</span><input id=\"c-q1\" type=\"range\" min=\"0.5\" max=\"5\" step=\"0.5\" value=\"2\"/></label>\n    <label class=\"control\"><span>Charge q₂: <strong id=\"v-q2\">3</strong> μC</span><input id=\"c-q2\" type=\"range\" min=\"0.5\" max=\"5\" step=\"0.5\" value=\"3\"/></label>\n    <label class=\"control\"><span>Show Mistake: <strong id=\"v-mistake\">OFF</strong></span><input id=\"c-mistake\" type=\"range\" min=\"0\" max=\"1\" step=\"1\" value=\"0\"/></label>\n    <ul>\n      <li><strong>Mistake:</strong> \"Field strength is constant everywhere\"</li>\n      <li><strong>Truth:</strong> Field strength = F/r² depends on distance squared</li>\n      <li><strong>Why:</strong> Electrostatic force spreads over larger area farther away</li>\n      <li>When distance doubles, field strength drops to ¼</li>\n    </ul>\n  </aside>\n  <section>\n    <div class=\"stage\" 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