Extract authenticated coulomb.social design language via designlang

Session probe lands on /vw_pages (Research). Use main designlang extract
with --cookie-file — pack ignores auth. 39 artifacts under
docs/design-extract; tolerate designlang late summary crash when cores exist.

docs/design-extract/coulomb-social-prompts/claude-artifacts.md

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+Create a React artifact that reproduces this brand's design language.
+Page intent: landing.
+Material language: flat.
+Voice: Tone: neutral · Headings: unknown · CTA verbs: [object Object], [object Object], [object Object], [object Object], [object Object], [object Object].
+Colors to use: #000000, #efefef, #616161, #373737, #171717, #ffffff, #e5e5e5, #d08728.
+Fonts: [object Object], [object Object], [object Object], [object Object].
+Radius vocabulary: 4, 8, 12, 15, 20.
+Sections:
+- hero
+- features
+- cta
+- footer
+Use Tailwind via CDN, lucide-react for icons, and keep the material language consistent across sections. Do not add extra decorative elements outside this vocabulary.

docs/design-extract/coulomb-social-prompts/cursor.md

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+# Design brief
+Page type: **landing**.
+Material language: **flat**.
+Voice: Tone: neutral · Headings: unknown · CTA verbs: [object Object], [object Object], [object Object], [object Object], [object Object], [object Object].
+## Tokens
+```ts
+export const tokens = {
+  colors: ['#000000', '#efefef', '#616161', '#373737', '#171717', '#ffffff', '#e5e5e5', '#d08728'],
+  fonts: ['[object Object]', '[object Object]', '[object Object]', '[object Object]'],
+  radii: ['4', '8', '12', '15', '20'],
+  shadows: ['rgb(170, 170, 170) 2px 2px 4px 0px', 'rgba(23, 23, 23, 0.1) 2px 2px 8px 2px'],
+};
+```
+## Sections
+- hero
+- features
+- cta
+- footer

docs/design-extract/coulomb-social-prompts/lovable.txt

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+Clone the design language of this landing page and build a fresh equivalent.
+Visual feel: flat. Tone: neutral · Headings: unknown · CTA verbs: [object Object], [object Object], [object Object], [object Object], [object Object], [object Object]
+Primary palette: #000000, #efefef, #616161, #373737, #171717.
+Typography: [object Object], [object Object], [object Object], [object Object].
+Corner radius vocabulary: 4, 8, 12, 15, 20.
+Shadow vocabulary: rgb(170, 170, 170) 2px 2px 4px 0px | rgba(23, 23, 23, 0.1) 2px 2px 8px 2px.
+Page structure:
+- hero
+- features
+- social proof
+- cta
+- footer

docs/design-extract/coulomb-social-prompts/recipe-button.md

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+# Recipe: button
+Build one button component that matches this brand.
+Palette: #000000, #efefef, #616161, #373737, #171717, #ffffff
+Typography: [object Object], [object Object], [object Object], [object Object]
+Material: flat
+Signals: Radius: 4, 8, 12, 15, 20 · Shadows: rgb(170, 170, 170) 2px 2px 4px 0px | rgba(23, 23, 23, 0.1) 2px 2px 8px 2px
+## Anatomy (detected)
+```json
+{
+  "kind": "button",
+  "structuralHash": "button",
+  "instanceCount": 1,
+  "variants": [
+    {
+      "css": {
+        "background": "rgb(239, 239, 239)",
+        "color": "rgb(0, 0, 0)",
+        "padding": "1px 6px 1px 6px",
+        "borderRadius": "0px",
+        "border": "2px outset rgb(0, 0, 0)",
+        "fontSize": "13.3333px",
+        "fontWeight": "400"
+      },
+      "instanceCount": 1
+    }
+  ]
+}
+```

docs/design-extract/coulomb-social-prompts/v0.txt

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+Build a landing page with this exact visual language.
+COLORS:
+  #000000
+  #efefef
+  #616161
+  #373737
+  #171717
+  #ffffff
+  #e5e5e5
+  #d08728
+FONTS: [object Object], [object Object], [object Object], [object Object]
+SPACING: 1, 24, 32, 40, 60, 80, 96, 320
+RADIUS: 4, 8, 12, 15, 20
+SHADOWS: rgb(170, 170, 170) 2px 2px 4px 0px | rgba(23, 23, 23, 0.1) 2px 2px 8px 2px
+MATERIAL LANGUAGE: flat
+VOICE: Tone: neutral · Headings: unknown · CTA verbs: [object Object], [object Object], [object Object], [object Object], [object Object], [object Object]
+SECTIONS (in order):
+- hero
+- features
+- cta
+- footer
+Use Tailwind. Match these tokens exactly. Keep the material language consistent.