[cpojer]

Generate the customized authentication schema and database module during the routing plugin’s configureServer hook, so later startup hooks can import app code that references authentication tables. Document lazy imports for schema-dependent auth hooks so void prepare can generate those tables on a fresh clone.

The fresh Cloudflare smoke test also passes on current main with a correctly configured alias. The failing regression directly exercises availability of the generated files before later startup hooks.

Adds fresh-app coverage for void prepare and Cloudflare dev startup, including a foreign key to userTable and a custom authentication field.

Validation:

• The ordering regression fails before the fix.
• Focused routing and fresh-app tests pass independently.
• Combined fix-batch verification: 13,338 affected tests, 17,009 full-suite tests with vp test run --pool forks, vp run build:all, vp run check, formatting, linting, and build-artifact checks.

The default full-suite run hit a native Node 24/V8 WebAssembly JIT assertion (end > addr); forked-worker verification completed successfully.

Refs #823.