chore: sync plugin/marketplace version to 0.12.0 + document the step (#22)

The plugin wrapper version is NOT inherited from Cargo.toml, so it drifted
(plugin.json 0.10.3, marketplace.json 0.7.0 vs workspace 0.12.0) — /plugin
update reported a stale 'latest'. Bump all three to 0.12.0 and add a RELEASING
step to keep them in sync, plus a reminder that a version bump without a vX.Y.Z
tag does NOT publish.

Author: Shahinyanm

.claude-plugin/marketplace.json

@@ -6,14 +6,14 @@
   },
   "metadata": {
     "description": "Task Journal — append-only reasoning chain memory for AI-coding tasks",
-    "version": "0.7.0"
+    "version": "0.12.0"
   },
   "plugins": [
     {
       "name": "task-journal",
       "source": "./plugin",
       "description": "Append-only journal of AI-coding task reasoning chains. Captures hypotheses, decisions, rejections, evidence — renders compact resume packs so an agent can pick up a 2-week-old task with full context.",
-      "version": "0.7.0",
+      "version": "0.12.0",
       "author": {
         "name": "Digital-Threads"
       },

RELEASING.md

@@ -22,11 +22,21 @@ cargo fmt --all --check
 
 # Bump version в Cargo.toml workspace (раз — все crates наследуют через version.workspace = true)
 # Edit Cargo.toml: version = "0.1.1" (или 0.2.0, 1.0.0, etc.)
-git add Cargo.toml
+#
+# ВАЖНО: версия плагина НЕ наследуется из Cargo.toml — синхронь вручную, иначе
+# `/plugin update` будет показывать старую версию (см. историю: 0.10.3 vs 0.12.0).
+# Обнови до той же версии:
+#   - plugin/.claude-plugin/plugin.json        → "version"
+#   - .claude-plugin/marketplace.json          → metadata.version И plugins[0].version
+git add Cargo.toml plugin/.claude-plugin/plugin.json .claude-plugin/marketplace.json
 git commit -m "chore: bump version to v0.1.1"
 git push
 ```
 
+> **Не забудь тег.** Версия в `Cargo.toml` сама по себе НЕ публикует. crates.io и
+> GitHub Release триггерит только push тега `vX.Y.Z` (шаг 2). Если бампнул версию
+> в feature-PR и смёржил без тега — релиз НЕ вышел, crates.io отстанет.
+
 ### 2. Tag + push
 
 ```bash

plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "task-journal",
-  "version": "0.10.3",
+  "version": "0.12.0",
   "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"