chore: use package specific tsconfig for linting

[pieh]

after some debbuging our eslint config (with debugLevel: ['typescript', 'typescript-eslint'], https://typescript-eslint.io/packages/typescript-estree/#api ) I noticed that that eslint is not using package's tsconfig because top-level one is matching everything pretty much first and seems to be picked.

Before (see just base tsconfig in logs):

> npx eslint --debug packages/cache/src/fetchwithcache.ts
[...]
  typescript-eslint:typescript-estree:create-program:useProvidedPrograms Retrieving ast for /Users/misiek/dev/pgs-netlify-primitives/packages/cache/src/fetchwithcache.ts from provided program instance(s) +0ms
  typescript-eslint:typescript-estree:parser Detected single-run/CLI usage, creating Program once ahead of time for project: [
  '/users/misiek/dev/pgs-netlify-primitives/tsconfig.base.json',
  '/Users/misiek/dev/pgs-netlify-primitives/tsconfig.base.json'
] +0ms
  typescript-eslint:parser:parser Resolved libs from program: [ 'es2020', 'dom' ] +0ms
  eslint:languages:js Parsing successful: /Users/misiek/dev/pgs-netlify-primitives/packages/cache/src/fetchwithcache.ts +2s
  eslint:languages:js Scope analysis: /Users/misiek/dev/pgs-netlify-primitives/packages/cache/src/fetchwithcache.ts +0ms
  eslint:languages:js Scope analysis successful: /Users/misiek/dev/pgs-netlify-primitives/packages/cache/src/fetchwithcache.ts +0ms
  typescript-eslint:type-utils:predicates Found an "error" any type +0ms
  typescript-eslint:type-utils:predicates Found an "error" any type +1ms
  typescript-eslint:type-utils:predicates Found an "error" any type +1ms
  typescript-eslint:type-utils:predicates Found an "error" any type +0ms
  typescript-eslint:type-utils:predicates Found an "error" any type +0ms

After (see that this time cache/tsconfig.json is being noted) :

> npx eslint --debug packages/cache/src/fetchwithcache.ts
[...]
typescript-eslint:typescript-estree:create-program:useProvidedPrograms Retrieving ast for /Users/misiek/dev/netlify-primitives/packages/cache/src/fetchwithcache.ts from provided program instance(s) +0ms
  typescript-eslint:typescript-estree:parser Detected single-run/CLI usage, creating Program once ahead of time for project: [
  '/users/misiek/dev/netlify-primitives/tsconfig.base.json',
  '/Users/misiek/dev/netlify-primitives/tsconfig.base.json'
] +0ms
  typescript-eslint:typescript-estree:parser Detected single-run/CLI usage, creating Program once ahead of time for project: [
  '/users/misiek/dev/netlify-primitives/packages/blobs/tsconfig.json',
  '/Users/misiek/dev/netlify-primitives/packages/blobs/tsconfig.json'
] +983ms
  typescript-eslint:typescript-estree:parser Detected single-run/CLI usage, creating Program once ahead of time for project: [
  '/users/misiek/dev/netlify-primitives/packages/cache/tsconfig.json',
  '/Users/misiek/dev/netlify-primitives/packages/cache/tsconfig.json'
] +307ms
  typescript-eslint:parser:parser Resolved libs from program: [ 'es2020.full' ] +0ms
  eslint:languages:js Parsing successful: /Users/misiek/dev/netlify-primitives/packages/cache/src/fetchwithcache.ts +2s
  eslint:languages:js Scope analysis: /Users/misiek/dev/netlify-primitives/packages/cache/src/fetchwithcache.ts +0ms
  eslint:languages:js Scope analysis successful: /Users/misiek/dev/netlify-primitives/packages/cache/src/fetchwithcache.ts +0ms

Potential alternatives I tried was just reordering the tsconfig.json declarations in project, but it seems to have no effect and always produce following map:

  typescript-eslint:typescript-estree:parseSettings:resolveProjectList parserOptions.project (excluding ignored) matched projects: Map(16) {
  '/users/misiek/dev/pgs-netlify-primitives/tsconfig.base.json' => '/Users/misiek/dev/pgs-netlify-primitives/tsconfig.base.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/blobs/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/blobs/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/cache/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/cache/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/dev/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/dev/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/dev-utils/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/dev-utils/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/edge-functions/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/edge-functions/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/functions/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/functions/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/headers/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/headers/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/images/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/images/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/otel/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/otel/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/redirects/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/redirects/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/runtime/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/runtime/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/runtime-utils/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/runtime-utils/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/static/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/static/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/types/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/types/tsconfig.json',
  '/users/misiek/dev/pgs-netlify-primitives/packages/vite-plugin/tsconfig.json' => '/Users/misiek/dev/pgs-netlify-primitives/packages/vite-plugin/tsconfig.json'
} +0ms

And then it attempts to match tsconfig in order of this map until it find satisfying one, and because right now base tsconfig match everything - it's used for everything when linting.

Yet another alternative would be to fully drop top-level base tsconfig and make sure that individual packages tsconfigs include everything they don't currently (most of them only include src, so some config files in root of package like vitest.config.js or tsup.config.js are currently being covered by base config)