Upgrade to EdgeQuake v0.28.5

From: v0.28.4 · To: v0.28.5 · CD: GHCR (edgequake, edgequake-frontend, edgequake-postgres)

Patch cut: docs/ops honesty + release_gates SPEC-154 vitest. Schema stays at 162. From ≤0.28.3, migrate to 162 first (see upgrade-to-0.28.4.md).

Highlights

Area	What changed
Schema	Unchanged (162) if already on 0.28.4
CI	`release_gates.sh` runs SPEC-154 WebUI vitest
Docs	CHANGELOG / upgrade guides / binding pins synced

Sequence

# Already on 0.28.4 (schema 162):
EDGEQUAKE_VERSION=0.28.5 docker compose pull && docker compose up -d

# From ≤0.28.3: follow upgrade-to-0.28.4.md (migrate to 162), then pull 0.28.5

Verify

curl -sf localhost:8080/health | jq '{version, schema}'
# expect version "0.28.5", schema.latest_version 162