Update routes generation for build-complete (#85017)
## Summary
- Adds comprehensive route generation and normalization for
build-complete adapter hooks
- Enhances adapter output types with additional metadata fields
(`sourcePage`, `wasmAssets`, `pprChain`, `parentFallbackMode`)
- Improves middleware matcher handling and revalidation bypass logic
- Adds proper tracing for shared node dependencies across pages and app
router modules
- Includes `buildId` in adapter context for build identification
## Changes
### Route Generation
- Generates complete route manifests with processed regex patterns for
headers, redirects, rewrites, and dynamic routes
- Converts routes using `@vercel/routing-utils` for consistent
formatting
- Handles RSC routes (`.rsc` suffix) for app router pages
- Supports i18n locale-specific routes and data routes
(`/_next/data/[buildId]/...`)
- Properly handles static pages with mixed app/pages router setups
### Adapter Output Enhancements
- Added `sourcePage` field to all route outputs for tracking original
source files
- Added `wasmAssets` support for bundled WebAssembly files
- Added `pprChain` and `parentFallbackMode` to prerender outputs for PPR
support
- Enhanced middleware matchers to include processed source and regex
patterns
- Improved traced assets handling with separate tracking for pages vs
app router modules
### Middleware & Revalidation
- Standardized middleware matcher format with `source`, `sourceRegex`,
`has`, and `missing` fields
- Automatically adds `x-prerender-revalidate` header bypass to
middleware matchers
- Fixed middleware pathname to always be `/_middleware` for consistency
### Asset Tracing
- Traces shared node dependencies for bootstrapping (node-environment,
require-hook, etc.)
- Separate tracing for pages router and app router module contexts
- Improved trace ignores for unnecessary files (dev builds, webpack
internals, etc.)
- Better handling of instrumentation hook assets
### Bug Fixes
- Fixed RSC fallback handling for mixed app/pages router builds
- Improved 404/500 static page detection with locale support
- Better basePath normalization with trailing slash handling
- Fixed data route generation for getServerSideProps pages with i18n
