upgraded to LanguageModelV2, zod 4.x, and ollama that support V2

[internalbuilds]

migrates to modules that support zod 4.x, LanguageModelV2 and other dependency updates.

fixes #52

[ulvidamirli]

I tested and all works for me.

[mishushakov]

hey @internalbuilds, thanks for the pr!
i am noticing that you've removed the generics and thus the methods have lost type-safety - this is actually a requirement for the project, so we need to make sure both Zod schemas and JSON Schemas are type-inferred correctly.

[mishushakov]

I have published my v5 work in progress branch (based on your PR here)
https://github.com/mishushakov/llm-scraper/tree/v5

the only problem is I am getting type errors due to output option from Vercel AI SDK

 ✓ tests/scraper.test.ts (8 tests) 58303ms
   ✓ scrapes top 5 stories from Hacker News  6597ms
   ✓ scrapes top 5 stories from Hacker News (image format)  6764ms
   ✓ scrapes top 5 stories from Hacker News (markdown format)  5178ms
   ✓ scrapes top 5 stories from Hacker News (raw html)  6300ms
   ✓ scrapes top 5 stories from Hacker News (code generation)  4939ms
   ✓ scrapes top 5 stories from Hacker News (json schema)  5424ms
   ✓ scrapes example.com (streaming)  2813ms
   ✓ scrapes top stories from Hacker News (streaming, array)  20265ms

 Test Files  1 passed (1)
      Tests  8 passed (8)
   Start at  22:56:17
   Duration  58.69s (transform 32ms, setup 0ms, collect 253ms, tests 58.30s, environment 0ms, prepare 31ms)