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/project_pluto_build_server.md

@@ -1,18 +0,0 @@
----
-name: project-pluto-build-server
-description: "Pluto Windows build server — location, role, and access details"
-metadata: 
-  node_type: memory
-  type: project
-  originSessionId: 541d4004-8c45-4290-89f5-0ba9ee4e64a9
----
-
-Pluto (`PLUTO`, 172.16.3.36) is a Windows Server 2019 VM hosted on Jupiter (Unraid primary).
-
-**Why:** It is the primary Windows build server for GuruRMM — builds all Windows agent variants (amd64, x86, legacy, debug), runs WiX 4 MSI builds, and signs binaries via Azure Trusted Signing.
-
-**Credentials:** Administrator / `Paper123!@#` (set 2026-05-15). SSH key: `guru@gururmm-build` (ed25519, `Q+ivqd/...`) must be in `C:\ProgramData\ssh\administrators_authorized_keys` with icacls `/inheritance:r` and ASCII encoding (not UTF-16).
-
-**How to apply:** When Pluto is unreachable or SSH auth fails, check Jupiter's VM console first (not physical machine). SSH key file must be ASCII-encoded — PowerShell `>` writes UTF-16 and breaks auth silently. Use `[System.IO.File]::WriteAllText(..., [System.Text.Encoding]::ASCII)` to write the key.
-
-**GuruRMM agent:** Installed but historically runs old versions (was on 0.6.3 as of 2026-05-15). Update it after any Pluto maintenance.