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_syncro_line_items.md

@@ -1,24 +0,0 @@
----
-name: feedback_syncro_line_items
-description: Correct Syncro API endpoint for adding labor/product line items to tickets
-metadata: 
-  node_type: memory
-  type: feedback
-  originSessionId: 282e0176-1bdb-49b7-8c15-faf152774d7e
----
-
-Use `POST /api/v1/tickets/{internal_ticket_id}/add_line_item` to add line items to tickets. Both `name` and `description` fields are required (422 if either missing). Never use timers.
-
-**Why:** `/line_item`, `/line_items`, and PUT `line_items_attributes` all 404. The correct endpoint was found via Syncro Swagger spec at api-docs.syncromsp.com. Mike has explicitly said never use timers.
-
-**How to apply:**
-- Path uses internal ticket ID (e.g., 111387456), not ticket number (32339)
-- Required fields: `name`, `description`, `quantity`, `price`, `taxable` (and `product_id` if catalog item)
-- Response is a flat object — parse `.id` directly (not `.line_item.id`)
-- For testing/practice, use internal ACG account only (customer ID 15353550)
-
-Example:
-```
-POST /api/v1/tickets/111387456/add_line_item
-{"product_id":1049360,"name":"Labor- Warranty work","description":"...","quantity":1,"price":0.0,"taxable":false}
-```