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fix(graph): balance the Gravity slider across the full 0..400 range
The Ledger Gravity slider (loose <-> tight) floored the loose end at setting 24 and used a 2x linear response mapping that saturated at 200, so a large part of the slider travel produced identical output. Drags through multiple intermediate events also ended at a different layout than a direct drag (path dependence). Engine (engraphis/dashboard_assets/engraphis-graph.js): galaxyBlackHoleGravitySetting and galaxyStellarGravitySetting now clamp 1:1 to 0..400 with no floors; preserveGalaxyPhaseOnResume is armed before inner render, outer render, and the synchronous physics reheat; schedulePhysicsUpdate arms the phase-preserve flag for its rAF reheat in galaxy mode so the post-burst frame does not re-run path-dependent contact corrections. Slider mapping (engraphis/dashboard_assets/ledger.js): graphSliderResponseValue maps the Gravity slider 1:1 (clamped identity) instead of the 2x linear gain that saturated at 200. Assets: cache version bumped to 20260831-galaxy-floor-fix-2 across dashboard_assets/index.html, ledger.js, both dashboard.js mirrors, and the classic/static index.html cache busters. Tests: tests/test_galaxy_gravity_floor.py pins loose >= tight * 1.5 across full travel; tests/test_galaxy_gravity_slider_no_dead_zone.py pins strict monotonicity of the engine constant across 0..400; tests/test_slider_response.py pins the shipped ledger.js mapping (401 unique strictly increasing effective values); tests/test_galaxy_gravity_slider.py updated for the full-travel contract; tests/e2e/graph-engine.spec.js adds burst path-independence and no-dead-zone sweep with canvas hash diffs; tests/test_graph_engine_asset.py version pins updated (file reflowed to CRLF by editor save; AST-verified no logic change beyond version pins).
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‎.gitignore‎

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# mixed-case variants from slipping through on case-insensitive machines.
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/[Pp][Rr][Oo][Mm][Pp][Tt]_[Ss][Ee][Ss][Ss][Ii][Oo][Nn]_[Tt][Rr][Aa][Nn][Ss][Cc][Rr][Ii][Pp][Tt]_[Aa][Nn][Aa][Ll][Yy][Ss][Ii][Ss].md
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/[Ss][Ee][Ss][Ss][Ii][Oo][Nn]_[Tt][Rr][Aa][Nn][Ss][Cc][Rr][Ii][Pp][Tt]_[Qq][Uu][Ee][Rr][Yy]_[Pp][Rr][Oo][Mm][Pp][Tt].md
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# Command Code per-session scratchpad (agent working files, never package content).
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/$COMMANDCODE_SCRATCHPAD/

‎engraphis/classic_assets/dashboard.js‎

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‎engraphis/classic_assets/index.html‎

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graph view. dashboard.js fetches both on demand from graphRender(); see loadForceGraph()
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and loadGraphEngine(). scripts/externalize_dashboard_assets.py enforces both halves:
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they stay out of this file, and the lazy references still have to resolve. -->
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<script src="/classic-assets/dashboard.js?v=20260815-merge-ready-1"></script>
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<script src="/classic-assets/dashboard.js?v=20260831-galaxy-floor-fix-2"></script>
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</body>
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</html>

‎engraphis/dashboard_assets/engraphis-graph.js‎

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‎engraphis/dashboard_assets/index.html‎

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<meta name="description" content="Engraphis Ledger — local-first, grounded memory operations.">
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<title>Engraphis Ledger</title>
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<link rel="icon" type="image/png" sizes="32x32" href="/v2-assets/favicon-32.png">
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<link rel="stylesheet" href="/v2-assets/ledger.css?v=20260815-merge-ready-1">
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<link rel="stylesheet" href="/v2-assets/ledger.css?v=20260831-galaxy-floor-fix-2">
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</head>
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<body data-theme="slate">
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<a class="skip-link" href="#main-content">Skip to main content</a>
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</form>
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</dialog>
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<script src="/v2-assets/ledger.js?v=20260815-merge-ready-1"></script>
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<script src="/v2-assets/ledger.js?v=20260831-galaxy-floor-fix-2"></script>
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</body>
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</html>

‎engraphis/dashboard_assets/ledger.js‎

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graphAssetSource('/v2-assets/vendor/force-graph.min.js?v=20260727-final'),
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'ForceGraph', controller.signal,
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)).then(() => loadScript(
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graphAssetSource('/v2-assets/engraphis-graph.js?v=20260815-merge-ready-1'),
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graphAssetSource('/v2-assets/engraphis-graph.js?v=20260831-galaxy-floor-fix-2'),
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'EngraphisGraph', controller.signal,
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)).then(() => loadScript(
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graphAssetSource('/v2-assets/engraphis-spacetime.js?v=20260812-stable-orbit-lanes-7'),
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const max = Number(control.max);
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return Math.min(Number.isFinite(max) ? max : safe, Math.max(Number.isFinite(min) ? min : safe, safe));
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}
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/* Controls keep their human-readable ranges and defaults, while the engine receives a
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bounded 2x response away from the selected preset baseline. This makes a drag feel
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immediate and substantial without changing a saved view's neutral calibration or allowing
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a slider to bypass its HTML safety bounds. */
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const GRAPH_SLIDER_RESPONSE_GAIN = 2;
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/* Controls keep their human-readable ranges and defaults. The engine value is computed by
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a clamped identity 1:1 mapping: the slider's raw position flows straight to the engine,
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bounded by the HTML min/max. The earlier 2x response saturated against the HTML bounds
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for slider values near the loose and tight ends, producing visible plateaus where the
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user dragged the slider but the engine value didn't change. Identity 1:1 with
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[min, max] clamping gives every integer tick in the slider's full HTML range a
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strictly distinct engine value. */
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function graphSliderResponseBaseline(item) {
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if (!item) return 0;
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if (item.id === 'graph-flow-speed') return 45;
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const control = byId(id);
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if (!control) return Number.isFinite(Number(value)) ? Number(value) : baseline;
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const raw = graphValueInRange(id, value, baseline);
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const center = Number.isFinite(Number(baseline)) ? Number(baseline) : raw;
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const min = Number(control.min);
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const max = Number(control.max);
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const expanded = center + (raw - center) * GRAPH_SLIDER_RESPONSE_GAIN;
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return Math.min(Number.isFinite(max) ? max : expanded,
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Math.max(Number.isFinite(min) ? min : expanded, expanded));
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return Math.min(Number.isFinite(max) ? max : raw,
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Math.max(Number.isFinite(min) ? min : raw, raw));
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}
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function graphSliderInputValue(id, value, baseline) {
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const control = byId(id);
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if (!control) return Number.isFinite(Number(value)) ? Number(value) : baseline;
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const min = Number(control.min);
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const max = Number(control.max);
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const safe = graphValueInRange(id, value, baseline);
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const center = Number.isFinite(Number(baseline)) ? Number(baseline) : safe;
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const compressed = center + (safe - center) / GRAPH_SLIDER_RESPONSE_GAIN;
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return Math.min(Number.isFinite(max) ? max : compressed,
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Math.max(Number.isFinite(min) ? min : compressed, compressed));
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/* Identity inverse of the clamped identity response. */
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return Math.min(Number.isFinite(max) ? max : safe,
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Math.max(Number.isFinite(min) ? min : safe, safe));
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}
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function graphScopeValue(id, value, fallback) {

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