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-rmm-unc-path-encoding.md

@@ -1,19 +0,0 @@
----
-name: feedback-rmm-unc-path-encoding
-description: RMM PowerShell UNC paths via user_session context lose one backslash when using string literals — must build with [char]92
-metadata:
-  type: feedback
----
-
-Never use `"\\CS-SERVER\..."` string literals in PowerShell scripts dispatched via GuruRMM `user_session` context. The backslash gets halved somewhere in the encoding pipeline, producing `\CS-SERVER\...` (a local path) instead of the UNC `\\CS-SERVER\...`.
-
-**Why:** The `user_session` execution wrapper appears to process escape sequences in the script text differently than `system` context, stripping one backslash from `\\`.
-
-**How to apply:** Always build UNC paths explicitly when using user_session:
-```powershell
-$bs = [char]92
-$base = "${bs}${bs}CS-SERVER${bs}homes${bs}Username"
-```
-This constructs `\\CS-SERVER\homes\Username` correctly regardless of context.
-
-The `system` context (offline hive reg query) showed correct `\\CS-SERVER` output, so the issue is specific to `user_session`.