docs: relocate felhom build root to /mnt/5_hdd/felhom.eu (moved off DooPlex SSD 2026-07-18)

CONTEXT.md

@@ -714,7 +714,7 @@
   fetch-verified **ANONYMOUSLY** (Gate 3c finding: generic packages are world-readable → G3
   git.token read-only rotation CANNOT break fetches; but the INSTALLER dies on an empty token —
   script-side requirement, not Gitea's). Drill VM restored to `virgin`; evidence
-  `~/drill/bake-0.103.0.log` on 180 + `documentation/pilot/RUNBOOK-GL1-publish-2026-07-07.md`.
+  `/mnt/5_hdd/felhom.eu/drill/bake-0.103.0.log` on 180 + `documentation/pilot/RUNBOOK-GL1-publish-2026-07-07.md`.
   **OPERATOR NEXT: bump the hub Day-0 manifest** to agent 0.74.0 / golden 0.103.0 (the four values
   are in the execution record) — until then fresh installs land 0.63.0/0.98.3. Also recorded:
   operator-key pin follow-up (fold into GL-4); GO-LIVE-PACKAGE.md still not in the repo (G1 status
@@ -853,7 +853,7 @@
   pre-floor controller 0.85.1 → **fresh installs need the one-time D.1b update** (agent restart →
   update button → 0.98.3); follow-ups recorded: rebuild golden ≥0.86.0 + re-vouch (operator), agent
   `mkdir -p` for the guesthook snippet dir, fresh-install local-API 401 (pre-existing), hub has no
-  host-delete path. Drill VM parked virgin-snapshotted on 180 (`~/drill/`).
+  host-delete path. Drill VM parked virgin-snapshotted on 180 (`/mnt/5_hdd/felhom.eu/drill/` — moved off the SSD 2026-07-18).
 - **2026-07-03 — A1 CLOSED (host-install v1.9.0 + agent v0.62.0)** — `Pool.Audit` added to
   `FelhomAgentGuest`; the agent's stale-lock reaper now intersects its scan with
   `GET /pools/felhom` membership (fail-safe skip on read failure). Spike: