Migrate to generated TypeScript client from ros2_medkit_clients

[bburda]

Summary

Replace the hand-maintained REST client (sovd-api.ts, types.ts) with the generated TypeScript client from @selfpatch/ros2-medkit-client-ts.

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Proposed solution (optional)

• Add dependency on @selfpatch/ros2-medkit-client-ts
• Remove src/lib/sovd-api.ts (~2087 lines)
• Remove src/lib/types.ts (~903 lines)
• Update src/lib/store.ts to use new client imports
• Update all components importing from old client
• Verify all existing functionality works
• Update tests

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Additional context (optional)

Depends on:

• sovd_web_ui#41 (rename to ros2_medkit_web_ui)
• ros2_medkit_clients#2 (TS client package)