feat: complete basic templates and features

[sdevil7th]

Summary

• added support ubuntu and AMD rocm

• completed generating the templates

• modified the nodes, improved the UX, made them generalised

• and other features mentioned in the demo

Checks

• npm run check
• npm run check:ui for behavior/layout changes, or reason not needed:
• npm run gallery:verify and npm run gallery:coverage for Gallery/template changes, or reason not needed:
• Documentation and local Markdown links updated when behavior/commands changed.

Compatibility And Proof

• Existing graph, storage, endpoint, and websocket compatibility is preserved or the migration is described.
• Mocked, backend/schema, artifact, and live model proof are reported separately where relevant.
• No credentials, private media, personal paths, machine inventories, or unredacted provenance are included.

Styling Maintainability

• Reused src/theme tokens for visual constants.
• Reused src/ui primitives where possible.
• Did not add another broad styling/component system.
• Did not add new raw colors, inline style, direct font sizes, direct radii, or one-off shadows in feature code.
• Preserved field behavior classes such as modiff-field, nodrag, and nowheel when touching fields.