fix: resolve relative imports for optimized source files (fix #23430)

[DaZuiZui]

Summary

• resolve relative imports to source files listed in optimizeDeps.include to their optimized dep entry
• match optimized metadata by the final resolved source path, including extensionless relative imports
• preserve special query handling for ?raw, workers, and URLs
• add a regression test covering a project source file imported relatively

Cause

optimizeDeps.include already resolved and pre-bundled the source file, but the dev optimizer resolver only checked optimized metadata for bare specifiers. Relative imports went through the normal filesystem path and continued to serve source modules, leaving the generated pre-bundle unused.

Fixes #23430

Tests

• pnpm --filter vite build-bundle
• pnpm test-serve playground/optimize-deps/__tests__/optimize-deps.spec.ts
• pnpm test-build playground/optimize-deps/__tests__/optimize-deps.spec.ts
• pnpm --filter vite typecheck
• pnpm exec eslint packages/vite/src/node/plugins/resolve.ts playground/optimize-deps/__tests__/optimize-deps.spec.ts