Appkit integration: expand seed data and input prompts

[prashsub]

Summary

• Add new use case descriptions to the seed data (01_seed_usecase_descriptions.sql)
• Restructure and expand section input prompts (02_seed_section_input_prompts.sql) to support appkit integration workflow
• Update package-lock.json dependencies

Commits

• ca8628d — Update seed data and dependencies for appkit integration
• e02f326 — Update section input prompts seed data
• 74cd3f9 — Expand section input prompts seed data

Test plan

• Verify seed SQL executes cleanly against Lakebase
• Confirm new use case descriptions render correctly in the app
• Validate expanded section input prompts appear for the correct workshop paths