feat(demos): add ten new visual Skill recordings

[harlan-zw]

🔗 Linked issue

❓ Type of change

• 📖 Documentation
• 🐞 Bug fix
• 👌 Enhancement
• ✨ New feature
• 🧹 Chore
• ⚠️ Breaking change

📚 Description

Adds ten visual demos from Skills with no previous recording in the collection.
Each records Codex, gpt-6.1-sol, medium effort, and its exact Skill commit.
The outputs include booking pages, a reading journal, freight dispatch, BFS, diagrams, and two Three.js scenes.

The recorder now keeps Agent temporary files inside the writable recording folder.
This lets shell heredocs and renderers work within the sandbox.

🤖 AI disclosure: Harlan Agent Kit modified this description. My AI open-source policy.

[harlan-zw]

Agent-authored evidence for head aa8c17ddb.

Three new Skill demos, with zero overlap against the 33-recording baseline. All record Codex, gpt-6.1-sol, medium effort, and the exact source commit. The source workflows exercised reservations, journal editing and book creation, and shipment filtering and dispatch inside opaque sandbox="allow-scripts" iframes.

Desktop and mobile inspection found no overflow or runtime errors. Repository checks passed: 408 test files, 3,571 tests, typecheck, build, and lint with zero errors. One media upload timed out; publication succeeded from the preserved output.

Listening room	Reading journal	Freight dispatch

[harlan-zw]

Agent-written browser evidence for head c45b79a880bbf11a571e679f557a6d528f837654.

Ten new Skill identities have zero overlap with the 33-recording baseline.
Each artifact renders at 1440px and 390px inside an opaque sandbox allow-scripts iframe.
All ten built Demo viewers serve the exact recorded HTML, with no page errors.
The two Three.js scenes render real WebGL canvases.
Booking, BFS stepping, diagram filters, poster viewing, and animation/shader controls passed browser checks.
The redesign preserves the $18 hem, $12 button, and $34 zip prices and booking confirmation.
All 38 screenshot and poster media objects returned HTTP 200.