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2 Commits

Author SHA1 Message Date
karti 19dd30acbe Give the Learn cards a real frame instead of a gradient
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The preview cards led with a generated gradient. It was a deliberate fallback —
nothing renders a frame of a Cap embed without loading the embed, and loading
nine embeds to decorate a grid is how a page becomes unusable on a phone — but
for videos PIG serves itself the frame is right there in the file.

The poster is named after the VIDEO's content hash, not its own:
`overview.4d4581ae.mp4` -> `overview.4d4581ae.jpg`. Re-rendering a clip changes
both names together, so a thumbnail cannot outlive what it claims to show. It
needs no schema column and no manifest entry, because the name is derivable.

`learnPoster.sh` cuts the frame with `thumbnail=90` starting four seconds in
rather than taking frame 0: the first frame of a Playwright capture is often
mid-paint, and a poster of a half-rendered page is worse than no poster.

The resolver ASSERTS the poster rather than verifying it — @pig/core is pure and
has no filesystem. That is safe in both directions: a missing poster 404s, which
`<video poster>` renders exactly as it renders no poster, and which the card
falls back from via onError. Claiming a poster that is absent is free; omitting
one that exists would cost every card its thumbnail.

Cap-hosted rows are unchanged and still get the gradient, verified by there
being exactly five <img> elements on a page with nine resources.

Also widens the media allowlist to jpg/webp. The filename pattern, the
traversal rules and the symlink check are untouched and still cover them,
because extension is the only axis that changed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-13 17:53:30 -07:00
karti 45b70b17f0 Redesign Learn, and give it five real videos in Karti's voice
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THE PAGE. The anonymous route rendered outside Shell, so it sat flush against
the viewport edge and read as a form rather than a product — which is the first
thing anyone at Prime Intellect sees when the link is shared. It now brings its
own chrome and leads with a hero; the platform track is a numbered course, the
concept tracks are a poster grid, and admin add/archive moved behind one Manage
toggle so they stop competing with the content. Verified in Chrome at 1440 and
393, light and dark: horizontal overflow is 0 in all three access states.

THE VIDEOS. Five ~30s walkthroughs, narrated in Karti's cloned voice through
Chatterbox and cut against real screen capture of the seeded demo book. The
audio is rendered FIRST and its measured duration drives the capture, because a
shot list that runs short leaves the narrator talking over a frozen frame and
one that runs long gets cut mid-sentence. Levels are loudness-normalised so
clips do not jump between videos.

Cap cannot take a programmatic upload — video.karti.ai needs an interactive
login — so PIG serves these itself. A native <video> on this origin needs no
iframe and therefore no CSP frame-src at all; Karti's own Cap recordings still
render through the existing iframe path, which is why the resolver is now a
discriminated union.

THREE THINGS THE VERIFIERS CAUGHT, all of which shipped green:

  - createMediaRoutes was never mounted. Every layer landed — migration, seed,
    both feeds, the bind mount, the docs — except the one that serves the bytes,
    so /media/learn/* fell through to the SPA fallback and answered HTTP 200
    text/html. The player showed a black box with working controls and no error.
    The tests certified the route factory in isolation, which proves the handler
    and says nothing about whether it is wired in. There is now an assertion
    against the ASSEMBLED app, and it fails loudly on content-type — the failure
    mode is a 200, not a 404.
  - A symlink in the media directory escaped the root. resolve() is lexical and
    stat() follows links, so the containment check this file's own header
    promised did not hold. realpath before the check closes it.
  - Vite proxied only /api, so self-hosted playback broke for anyone running the
    app the documented way — in the same invisible 200-text/html manner.

Also: a duplicate media slug used to throw from the middle of seedDemo() and
take out every later section; it now reports and skips that one entry. And the
player has an onError state, because content-addressed filenames mean a
re-render deliberately leaves the old row pointing at a file that is gone.

The three DEMO platform rows are dropped — five real recordings supersede them,
and placeholders sitting under real ones made the page read as half-finished to
the audience it is meant to convince. The supply and demand concept rows stay:
there are no real recordings for those tracks yet, and an empty track hides the
shape of the page.

Tests 275, typecheck clean.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-13 17:30:08 -07:00