朱子纯 / vibe-erp

Closes a 15-commit-old TODO on MetaController and unifies the
version story across /api/v1/_meta/info, /v3/api-docs, and the
api-v1.jar manifest.

**Build metadata wiring.** `distribution/build.gradle.kts` now
calls `buildInfo()` inside the `springBoot { }` block. This makes
Spring Boot's Gradle plug-in write `META-INF/build-info.properties`
into the bootJar at build time with group / artifact / version /
build time pulled from `project.version` + timestamps. Spring
Boot's `BuildInfoAutoConfiguration` then exposes a `BuildProperties`
bean that injection points can consume.

**MetaController enriched.** Now injects:
  - `ObjectProvider<BuildProperties>` — returns the real version
    (`0.28.0-SNAPSHOT`) and the build timestamp when packaged
    through the distribution bootJar; falls back to `0.0.0-test`
    inside a bare platform-bootstrap unit test classloader with
    no build-info file on the classpath.
  - `Environment` — returns `spring.profiles.active` so a
    dashboard can distinguish "dev" from "staging" from a prod
    container that activates no profile.

The GET /api/v1/_meta/info response now carries:
  - `name`, `apiVersion` — unchanged
  - `implementationVersion` — from BuildProperties (was stuck at
    "0.1.0-SNAPSHOT" via an unreachable `javaClass.package` lookup)
  - `buildTime` — ISO-8601 string from BuildProperties, null if
    the classpath has no build-info file
  - `activeProfiles` — list of effective spring profiles

**OpenApiConfiguration now reads version from BuildProperties too.**
Previously OPENAPI_INFO_VERSION was a hardcoded "v0.28.0"
constant. Now it's injected via ObjectProvider<BuildProperties>
with the same fallback pattern as MetaController. A single
version bump in gradle.properties now flows to:
  gradle.properties
    → Spring Boot's buildInfo()
    → build-info.properties (on the classpath)
    → BuildProperties bean
    → MetaController (/_meta/info)
    → OpenApiConfiguration (/v3/api-docs + Swagger UI)
    → api-v1.jar manifest (already wired)

No more hand-maintained version strings in code. Bump
`vibeerp.version` in gradle.properties and every display follows.

**Version bump.** `gradle.properties` `vibeerp.version`:
`0.1.0-SNAPSHOT` → `0.28.0-SNAPSHOT`. This matches the numeric
label used on PROGRESS.md's "Latest version" row and carries a
documentation comment explaining the propagation chain so the
next person bumping it knows what to update alongside (just the
one line + PROGRESS.md).

**KDoc trap caught.** A literal `/api/v1/_meta/**` path pattern
in MetaController's KDoc tripped the Kotlin nested-comment
parser (`/**` starts a KDoc). Rephrased as "the whole `/api/v1/_meta`
prefix" to sidestep the trap — same workaround I saved in
feedback memory after the first time it bit me.

**Smoke-tested end-to-end against real Postgres:**
  - GET /api/v1/_meta/info returns
    `{"implementationVersion": "0.28.0-SNAPSHOT",
      "buildTime": "2026-04-09T09:48:25.646Z",
      "activeProfiles": ["dev"]}`
  - GET /v3/api-docs `info.version` = "0.28.0-SNAPSHOT" (was
    the hardcoded "v0.28.0" constant before this chunk)
  - Single edit to gradle.properties propagates cleanly.

24 modules, 355 unit tests, all green.