chore: release 0.28.4

memory::open SQLITE_BUSY fix (#59) shipped as a patch.

Claude-Session: https://claude.ai/code/session_01NqSquetYKqkZM2DW5zfsXd

Author: Shahinyanm

CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.28.4] - 2026-06-29
+
+### Fixed
+- **`SQLITE_BUSY` on concurrent first open of the global memory DB.** The
+  cross-project memory database (`memory.sqlite`) is opened concurrently by
+  sessions from different projects. The one-time WAL conversion on the first
+  open of a fresh/rollback-mode DB takes a brief exclusive lock; with no
+  `busy_timeout` in effect, a second process opening at the same instant hit
+  `SQLITE_BUSY` on the conversion itself. `memory::open` now sets
+  `PRAGMA busy_timeout=5000` *before* `PRAGMA journal_mode=WAL`, so concurrent
+  first-opens wait instead of erroring.
+
 ## [0.28.3] - 2026-06-18
 
 ### Fixed

Cargo.toml

@@ -7,7 +7,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.28.3"
+version = "0.28.4"
 edition = "2021"
 rust-version = "1.88"
 license = "MIT"

plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "task-journal",
-  "version": "0.28.3",
+  "version": "0.28.4",
   "description": "Append-only journal of AI-coding task reasoning chains: hypotheses, decisions, rejections, evidence. Renders compact resume packs so an agent can pick up a 2-week-old task with full context.",
   "author": {
     "name": "Mher Shahinyan"