65 move model implementations into the model package

[tomsontom]

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[tomsontom]

Review

Overview

This PR repackages the generated Java code for both server (Quarkus/Jakarta WS) and client (JDK HTTP client) targets:

• <root>.service.model → <root>.model
• <root>.impl.model.json → <root>.model.impl.json

The actual hand-written change is small and confined to ~17 files in packages/cli/src/java-server/, java-server-jakarta-ws/, and java-rest-client-jdk/ — string-literal package paths in the generator templates. The other ~615 changed files are regenerated sample/test output (Java sources under java-test/, generated TS test fixtures) reflecting the new package names — pure renames with no independent logic changes.

Code quality

• The renames are consistent across all three generator backends (server, server-jakarta-ws, client-jdk) — every occurrence of service.model and impl.model.json was updated together.
• Two small incidental improvements rode along with the refactor:
  • java-server/union.ts: generateUnion's artifactConfig parameter was mistyped as JavaClientAPIGeneratorConfig; now correctly typed as JavaServerGeneratorConfig, and the unused import was dropped.
  • java-server-jakarta-ws/builder-factory.ts: a hardcoded _Base.BaseData literal was replaced with the Base variable bound via fqn(...), making the emitted type name robust to import aliasing collisions, consistent with the rest of the file.
• java-server/builder-factory.ts: correctly switched to pass artifactConfig.rootPackageName instead of the local packageName (which is <root>.service), since the model package is no longer nested under .service.

Verification performed

• tsc --noEmit on packages/cli — passes.
• npm run test (vitest) — 11 test files fail, but all failures are ECONNREFUSED to localhost:3000 (tests expect a live sample server) — pre-existing infra dependency, unrelated to this change.
• Regenerated Java sources compile cleanly: mvn clean compile succeeds for both java-test/java-quarkus (644 source files) and java-test/java-client (182 source files) under the new package layout.

Risks / things to double check

• The PR body is empty — worth adding a short description linking to issue Move model-implementations into the model-package #65 for posterity.
• Since this changes the public package layout of generated client/server code, it's a breaking change for any existing consumers of the generator output (import paths shift). Worth confirming this is called out as a breaking change if the generator is versioned/released.

No correctness issues found. The mechanical rename is consistent and verified to compile end-to-end.