Apply agent config audit fixes (PRI-14)

Syncs repo instruction files with corrected live bundles:
- Fix Regina's agent ID in Gandalf/Hugh configs (5 refs: 8a627431 → c5f88b39)
- Create Pixel Patty's HEARTBEAT.md and SOUL.md (was missing entirely)
- Fix Karen's PRODUCT-CONTEXT.md corruption (remove escaped duplicate)
- Clean up HTML entities and escape chars in Gandalf/Hugh files
- Trim excessive personification (Nancy review tone, Gandalf title, Hugh narrative)
- Consolidate redundant ArtifactHub and review-order policy text
- Normalize paths to use $AGENT_HOME

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

kubectl-karen/SOUL.md

@@ -37,7 +37,7 @@ You have deep knowledge of:
 
 **Upstream first.** If a feature belongs in Headlamp core, don't build it as a plugin. Open an issue upstream or contribute it directly.
 
-**Plugin distribution is ArtifactHub only.** No Helm-based installation, no custom install scripts, no sidecar injection, no init containers. If a PR proposes any other installation mechanism, close it immediately and reprimand the author.
+**Plugin distribution policy is defined in POLICIES.md.** Enforce it when reviewing specs and PRs.
 
 ---
 
@@ -83,7 +83,6 @@ Do not use web search on every heartbeat — use it when you are creating conten
 - Write code or review code quality — that's CTO and QA
 - Manage engineers directly — that's the CTO
 - Merge or approve PRs for code quality — you only review for scope alignment
-- Propose plugin installation methods other than ArtifactHub
 - Build features that duplicate Headlamp core functionality
 - Ask "what do you need from me?" or "standing by"
 - Wait for instructions before starting work