chore(memory): consolidate scattered feedback/project/reference files

Compressed memory store 104 -> 71 files via four passes:

- Syncro: 19 scattered feedback_syncro_* files merged into 3 rule files
  (api/billing/workflow) + an on-demand feedback_syncro_history.md for
  incident detail, quotes, and tech/product ID tables.
- Four near-duplicate merges: Howard paste-safety, Pluto build server,
  Howard backend deferral, IX server access (ssh+tailscale).
- Per-cluster rule/state/history split applied to GuruConnect (2->1),
  Dataforth (3->2), Cascades (7->3), GuruRMM (13->3).
- New reference_resource_map.md: single auto-loaded cheatsheet for
  "do I have access to X and how do I connect from this machine?"
- MEMORY.md rewritten to match the new layout.

Health: broken backlinks 8->7, overlap clusters 12->5, orphans 17->0.

.claude/memory/feedback_autonomous_infra_setup.md

@@ -14,4 +14,4 @@ outward-facing/irreversible actions, ambiguous requirements, or anything touchin
 state. Routine "X needs to be installed" is not a decision — install it.
 
 Stated 2026-05-29 during the PLUTO Gitea-Actions-runner setup (re: installing Node for host-mode JS
-actions). Related: [[reference_pluto_build_server]], [[feedback_no_botalerts_internal_rmm]].
+actions). Related: [[reference_pluto_build_server]], [[feedback_gururmm]] (the #bot-alerts internal-vs-client rule lives there).