fix: redirect pm2/zulip health-check logging to Gitea, never graph (hard rule)

- pm2-self-heal.prose.md: description said 'logs every action to the
  knowledge graph', contradicting its own execution step (line ~60) that
  says '(not knowledge graph - hard rule)'. Align description to Gitea.
- zulip-self-heal.prose.md: Reporting section said 'every cycle produces
  a knowledge graph node'. Contract is RETIRED; remove graph-node directive.
- Both now consistently log to SyslogSolution/health-logs, never the graph.

pm2-self-heal.prose.md

@@ -4,7 +4,8 @@ name: pm2-self-heal
 description: >
   Monitors critical PM2 processes (abiba-zulip, abiba-telegram, gitea-runner,
   spoton-service, zulip-watchdog) and auto-restarts any that are stopped or
-  errored. Logs every action to the knowledge graph and alerts the owner via
+  errored. Logs every action to Gitea (SyslogSolution/health-logs — not
+  knowledge graph, hard rule) and alerts the owner via
   Zulip DM on failures.
   CRITICAL: Never restart abiba-zulip — it runs this contract.
   AS-BUILT 2026-08-09 (captain ruling, ecosystem is authoritative):

zulip-self-heal.prose.md

@@ -75,9 +75,8 @@ Track via `/tmp/zulip-heal-debounce-<agent>` (unix timestamp of last restart).
 
 ## Reporting
 
-Every cycle produces a knowledge graph node:
-- Title: `[LEARN] zulip-self-heal: <timestamp>`
-- metadata: { type: "remediation", status: "fixed" | "escalated" | "healthy" }
+This contract is RETIRED — health-check logs are NOT knowledge graph content.
+No graph nodes are created. Logs go to Gitea (SyslogSolution/health-logs).
 - Issues fixed → DM: "🛠 Zulip Self-Heal: fixed <issue>"
 - Issues escalated → DM: "⚠️ Zulip Self-Heal: <issue> needs attention"