chore(polish): manifest, docs, tests, and nits for dms-plugin-dev alignment

- plugin.json: added capabilities + requires; bumped to 0.2.0
- README: corrected "auto-refresh" claim (now documents the intentional on-demand + defensive poll-act-poll); added Implementation notes section covering Proc + I18n + best practices
- test/lib.test.js: updated the manual verification comment (now references Proc + preserved behavior)
- Minor version references in README example + caption
- All changes keep exact toggle semantics and follow repo style

Written by AI agent working for @jtmorris. Model: grok-build-0.1.

README.md

@@ -2,7 +2,7 @@
 
 A lightweight widget plugin that shows Tailscale connectivity status on the Dank Bar with quick controls for toggling connection, switching exit nodes, and copying peer addresses.
 
-![Tailscale Widget v0.1.0](resources/dms_tailscalectl_v0.1.0.png)
+![Tailscale Widget v0.2.0](resources/dms_tailscalectl_v0.1.0.png)
 
 ## Features
 
@@ -14,7 +14,7 @@ A lightweight widget plugin that shows Tailscale connectivity status on the Dank
   - Peer list with hostnames and IPs
 - **Click-to-copy** any hostname or IP to clipboard
 - **Exit node selection** — click `↗` on any exit-node-capable peer to route through it
-- **Auto-refresh** — status polls every 5 seconds
+- **On-demand status** — polls Tailscale for ground truth on load, explicit actions, and post-mutation verification (defensive poll-act-poll for toggles; no always-on timer)
 - **Toast notifications** for all errors
 
 ## Requirements
@@ -70,7 +70,7 @@ A lightweight widget plugin that shows Tailscale connectivity status on the Dank
   "id": "tailscalectl",
   "name": "Tailscale",
   "description": "Tailscale status and controls on the Dank Bar",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "author": "John Morris & Vybe (AI Slop... er... Coding Assistant)",
   "icon": "vpn_key",
   "type": "widget",
@@ -79,6 +79,13 @@ A lightweight widget plugin that shows Tailscale connectivity status on the Dank
 }
 ```
 
+## Implementation notes
+
+- Uses `Proc` singleton (from `qs.Common`) for all external `tailscale` commands (one-shot stdout capture + auto cleanup).
+- Fully I18n-ready via `I18n.tr(...)` (source keys in American English only today; see `tailscalectl/i18n/` for scaffolding).
+- Follows current `dms-plugin-dev` + DMS 1.4 plugin best practices (capabilities, requires, no raw Process for one-shots, etc.).
+- Toggle uses intentional defensive poll-act-poll (see code comments).
+
 ## Testing
 
 ```bash

tailscalectl/plugin.json

@@ -6,6 +6,9 @@
   "author": "John Morris",
   "icon": "vpn_key",
   "type": "widget",
+  "capabilities": ["dankbar-widget"],
   "component": "./TailscaleWidget.qml",
-  "permissions": ["process"]
+  "permissions": ["process"],
+  "requires": ["tailscale"],
+  "version": "0.2.0"
 }

test/lib.test.js

@@ -8,9 +8,9 @@ const { parsePeers, makeExitNodeCommand, findActiveExitNode, errorMessage, forma
  *
  * All functions in lib.js are exercised via Node's built-in test runner.
  *
- * TailscaleWidget.qml has no automated test coverage. The four Process
+ * TailscaleWidget.qml has no automated test coverage. The Proc.runCommand
- * objects, their onExited handlers, and all widget UI behavior must be
+ * calls, callback-based coordination (exact poll-act-poll preserved), and all
- * verified manually.
+ * widget UI behavior must be verified manually in a running DMS instance.
  */
 
 test("parsePeers extracts exitNode from ExitNodeOption", () => {