chore: post-audit cleanup — gr/ relocated, scratch + PR-body snapshots removed

- gr/ folder moved to sibling repo at C:\Users\dohertj2\Desktop\graccess\gr;
  the SQL queries + DDL captures belong with the graccess CLI work, not
  with the OPC UA server. PR 7.2 retired direct Galaxy-DB access from this
  repo (mxaccessgw owns those queries server-side now).
- Drop the now-obsolete "Galaxy Repository Database" section in CLAUDE.md
  for the same reason — server no longer queries the DB directly.
- Delete root scratch files surfaced by the doc audit (runtimestatus.md,
  service_info.md) — abandoned plan + operational scratch.
- Delete docs/v2/implementation/pr-{1,2,4}-body.md — ephemeral PR-body
  snapshots from the v2-mxgw rollout.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -58,19 +58,6 @@ Galaxy `mx_data_type` values map to OPC UA types (Boolean, Int32, Float, Double,
 
 The gateway lives in a sibling repo at `c:\Users\dohertj2\Desktop\mxaccessgw\`. See `docs/v2/Galaxy.ParityRig.md` for the gw setup recipe (build, API key provisioning via `apikey create-key`, env-var overrides for HTTP/2 cleartext + worker path). The gw's MXAccess Toolkit reference (its `gateway.md`) is the canonical MxAccess API doc; the standalone `mxaccess_documentation.md` previously kept in this repo retired in PR 7.3.
 
-## Galaxy Repository Database
-
-Connection: `sqlcmd -S localhost -d ZB -E` (Windows Auth). See `gr/connectioninfo.md`.
-
-The `gr/` folder contains:
-- `queries/` — SQL for hierarchy extraction, attribute lookup, and change detection
-- `ddl/tables/` and `ddl/views/` — Schema definitions
-- `schema.md` — Full table/view reference
-- `build_layout_plan.md` — Step-by-step plan for building the OPC UA address space from DB queries
-- `gr/CLAUDE.md` — Detailed guidance for working within the `gr/` subfolder
-
-Key tables: `gobject` (hierarchy/deployment), `template_definition` (object categories), `dynamic_attribute` (user-defined attributes), `primitive_instance` (primitive-to-attribute links), `galaxy` (change detection).
-
 ## Build Commands
 
 ```bash