remove tsconfig aliases

[kentcdodds]

as typescript reuses package.json import config

Checklist

• Docs updated

solves #1029

Originally opened by @jansepke as #1030, but moved to this because I needed to make changes and I couldn't push to that PR because it was opened from @jansepke's main branch rather than a separate branch.

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Note

Removes tsconfig path aliases in favor of package.json "imports", updates import specifiers across the app/tests, and documents the change with a new ADR.

• Build/TypeScript:
  • Remove compilerOptions.paths aliases from tsconfig.json.
  • Update internal imports to include .ts/.tsx extensions throughout the codebase.
• Docs:
  • Add docs/decisions/046-remove-path-aliases.md documenting the move to package.json "imports".
  • Mark docs/decisions/031-imports.md as superseded and revise guidance.
• App:
  • Update imports in app/components/error-boundary.tsx, app/routes/admin/cache/index.tsx, and app/routes/admin/cache/sqlite.server.ts.
• Tests/Seed:
  • Adjust imports in tests/e2e/onboarding.test.ts, tests/playwright-utils.ts, app/utils/auth.server.test.ts, and prisma/seed.ts to new specifiers.

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