chore(dso-tmmj): close epic — Methodical debugging improvements (v0.9.0)

All 11 stories complete. dso:fix-bug skill implemented with BASIC/INTERMEDIATE/
ADVANCED/ESCALATED investigation tiers. Dogfooded on w21-prlu. Docs updated.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: JoeOakhartNava

.tickets/dso-tmmj.md

@@ -1,6 +1,6 @@
 ---
 id: dso-tmmj
-status: in_progress
+status: closed
 deps: []
 links: []
 created: 2026-03-17T18:33:39Z

.tickets/w21-6fir.md

@@ -1,6 +1,6 @@
 ---
 id: w21-6fir
-status: in_progress
+status: closed
 deps: [w21-auwy, w21-c4ek, w21-ahok, w21-dksj, w21-9pp1, w21-slh5, w21-nl5m, w21-1m1i, w21-8igi, w21-u4ym]
 links: []
 created: 2026-03-19T03:31:29Z

plugins/dso/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "dso",
-  "version": "0.8.0",
+  "version": "0.9.0",
   "description": "Workflow infrastructure plugin for Claude Code projects",
   "commands": "./commands/",
   "skills": "./skills/",