release: v5.5.0 — steering-model I (A+E)

Bundles the two v5.5.0 features already on main:
- A (f3aadb5): RUL/CML compaction-durability findings (both LOW) — a
  large (>50-line) path-scoped rule and a nested CLAUDE.md are not
  re-injected after compaction.
- E (f75ed56): PLH flags plugin-agent hooks/mcpServers/permissionMode
  frontmatter Claude Code ignores for plugin subagents (permissionMode
  MEDIUM false-security, rest LOW).

Additive — scanner count stays 13, --json/--raw byte-stable. Suite 961
pass. self-audit A/A (config 93, plugin 100), readmeCheck passed,
mismatches []. Version synced: plugin.json 5.4.1->5.5.0, README
version badge + version-history row, CHANGELOG [5.5.0] section.

Foundation (active-config-reader enumeration) + B deferred to v5.6.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ter3E2JSi1Khgmuf2kady8

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "config-audit",
   "description": "Multi-agent workflow for analyzing, reporting, and optimizing Claude Code configuration across your entire machine",
-  "version": "5.4.1",
+  "version": "5.5.0",
   "author": {
     "name": "Kjell Tore Guttormsen"
   },