docs: Update CHANGELOG and bump version to 2.0.5

Test coverage increased to 94.00% (229 tests).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/CHANGELOG.md

@@ -2,6 +2,15 @@
 
 All notable changes to claude-hud will be documented in this file.
 
+## [2.0.5] - 2026-01-03
+
+### Improved
+- **Test coverage**: Increased to 94.00% (229 total tests)
+  - Added ContextMeter tests (header, percentage, compact warning, number formatting)
+  - Added settings-reader edge case tests (invalid JSON, missing fields)
+
+---
+
 ## [2.0.4] - 2026-01-03
 
 ### Improved

tui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-hud-tui",
-  "version": "2.0.4",
+  "version": "2.0.5",
   "type": "module",
   "main": "dist/index.js",
   "scripts": {