docs(build): complete build and release story

design/log.md

@@ -19,6 +19,12 @@ description: Chronological record of material decisions affecting the Spigot Inv
 - The Sorting Stick uses a vertical recipe in the crafting grid's center column: a Chest or Barrel above Redstone Dust, with a Stick at the bottom.
 - Either storage-block variant produces one Sorting Stick.
 
+## 2026-09-04 — Build and release foundation completed
+
+- Added the Java 25 Gradle build, Purpur API dependency, strict compiler linting, JUnit 5 lifecycle, plugin metadata, and initial plugin entry point.
+- Added Gitea CI, conventional-commit validation for pull requests, development artifacts, semantic releases, and release-asset upload.
+- Verified `./gradlew clean check jar`, successful main and tag CI runs, and release `v1.0.0` with `spigot-inventory-helper-1.0.0.jar` attached.
+
 ## 2026-09-04 — Implementation started
 
 - Approved implementation begins with the tested Gradle and Purpur foundation, followed by the Sorting Stick, inventory sorting, and automatic tool replacement.

design/user-stories/us-001-build-and-release-plugin.md

@@ -2,7 +2,7 @@
 type: User Story
 title: "US-001: Build and release the plugin"
 description: Give maintainers repeatable Purpur builds, automated verification, and versioned Gitea releases.
-status: in-progress
+status: done
 ---
 
 # US-001: Build and release the plugin
@@ -11,15 +11,15 @@ As a **plugin maintainer**, I want repeatable builds and automated releases so t
 
 ## Acceptance criteria
 
-- [ ] The Gradle project compiles against Purpur API `26.2.build.2618-stable` using a Java 25 toolchain.
+- [x] The Gradle project compiles against Purpur API `26.2.build.2618-stable` using a Java 25 toolchain.
-- [ ] Compiler lint warnings fail the build.
+- [x] Compiler lint warnings fail the build.
-- [ ] Automated JUnit 5 tests run as part of the Gradle check lifecycle.
+- [x] Automated JUnit 5 tests run as part of the Gradle check lifecycle.
-- [ ] Pushes and pull requests build and test the plugin in Gitea Actions.
+- [x] Pushes and pull requests build and test the plugin in Gitea Actions.
-- [ ] Pull requests validate conventional commit messages.
+- [x] Pull requests validate conventional commit messages.
-- [ ] CI stores a development JAR as a workflow artifact.
+- [x] CI stores a development JAR as a workflow artifact.
-- [ ] Main-branch conventional commits drive semantic versioning.
+- [x] Main-branch conventional commits drive semantic versioning.
-- [ ] A successful release builds a versioned JAR and attaches it to the corresponding Gitea release.
+- [x] A successful release builds a versioned JAR and attaches it to the corresponding Gitea release.
-- [ ] Build files, Gradle wrapper, workflows, and release behavior follow `../spigot-base/` where applicable while using Spigot Inventory Helper names and identifiers.
+- [x] Build files, Gradle wrapper, workflows, and release behavior follow `../spigot-base/` where applicable while using Spigot Inventory Helper names and identifiers.
 
 ## Related