Neutral wording in import docs; portable tool output paths

Import-surface docs and docstrings describe the automation as a
migration script; status-doc references in CHANGELOG/ADR-009/ROADMAP
point at repo files. Screenshot/verify tools write to /tmp/shopdb-shots
(created on import) instead of a machine-specific directory.

docs/ROADMAP.md

@@ -21,7 +21,7 @@ The last big milestone before 1.0 is the legacy-ASP data import plus a productio
 ### Must-have
 
 - **Asset model fully wired**. `Asset.mapx, Asset.mapy` columns, `AssetRelationship.inheritsposition`, `AssetRelationship.propagatesthroughid` columns. Models match the locked ADR-001 surface that `resolve_asset_position` already targets.
-- **Equipment data migration script** for facilities migrating from legacy ASP shopdb. One-shot script under `scripts/migration/`. See [migrating-asset-schema](../../.claude/skills/migrating-asset-schema.md) for the policy. Per ADR-001, only `category='Equipment' AND machinenumber IS NOT NULL` migrates.
+- **Equipment data migration script** for facilities migrating from legacy ASP shopdb. One-shot script under `scripts/migration/`. Per ADR-001, only `category='Equipment' AND machinenumber IS NOT NULL` migrates.
 - **Printers retirement**. Legacy `PrinterData` model, `printers_bp` legacy blueprint, and the frontend `PrinterForm.vue` references to `printer.printerdata.*` get removed in lockstep. Coordinated with the equipment migration.
 - **External plugin UI packaging**. The Vue-side hook contract ships (ADR-010: get_settings_cards / get_asset_panels / get_map_overlays / get_asset_presentation) and route gating is backend-driven (ADR-009), but plugin routes/views still live in core `frontend/src`. Let an external plugin ship its own Vue bundle so adopters can add UI without editing core.