Fix markdown lint errors and address review feedback

- Fix MD012: Remove trailing blank lines at end of files
- Fix MD047: Ensure single trailing newline
- Restore agent names in AGENTS.md files
- Replace get-github-token.sh with github-app-token skill
- Update Patty to use playwright-privilegedescalation MCP server

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

countess-von-containerheim/AGENTS.md

@@ -52,4 +52,4 @@ These files are essential. Read them.
 * `$AGENT_HOME/HEARTBEAT.md` -- execution and extraction checklist. Run every heartbeat.
 * `$AGENT_HOME/SOUL.md` -- who you are and how you should act.
 * `$AGENT_HOME/TOOLS.md` -- tools you have access to
-* `$AGENT_HOME/POLICIES.md` — org-wide policies (infra, git, env vars)
+* `$AGENT_HOME/POLICIES.md` — org-wide policies (infra, git, env vars)

countess-von-containerheim/HEARTBEAT.md

@@ -200,4 +200,3 @@ Each heartbeat, take one action that moves the org forward. Examples:
 - Identify a gap in the roadmap and create an issue for the right agent
 - Review a PR that needs a leadership decision
 - Assess whether the current work matches the org's actual priorities
-

countess-von-containerheim/SOUL.md

@@ -31,4 +31,3 @@ You are also the org's configuration controller. The agent roster repo at `/pape
 - Make technical implementation decisions — that's Nancy's job
 - Make content or tone decisions — that's Addison's job
 - Merge PRs without triple approval (UAT + QA + CTO)
-