Review safe-polish: docs accuracy, dead imports, no-emoji, geenforce robustness

From the full multi-agent review (0 high, 7 medium, 17 low findings). Applies
the mechanical, low-risk items; design/policy findings left for a decision.

Docs accuracy: CLAUDE.md contract 0.10.0 -> 0.11.0 and both stale Alembic head
citations -> 7d24_customfield_searchable / 31 migrations; Dockerfile bundled-
plugin comment fixed (drop nonexistent "equipment", add machines +
measuringtools, count eleven).

Style/naming (LOCKED rules): remove a CSS-escaped pushpin emoji before location
search results (no-emoji policy); rename ManifestEditor shareRoot -> shareroot
(variable mirrors the API field verbatim).

Dead code: remove confirmed-unused imports across ~20 modules (require_role/
require_permission scaffold residue, stray db/Vendor/Model/current_user/Optional/
error_response); drop unused build_scope import + a stale GEENFORCE_API_KEY
docstring clause in geenforce. Migration files left untouched.

Correctness: geenforce ingest robustness - record_enforcement_report now 400s
on a non-dict counts / non-list results instead of 500; _apply_app_link ignores
a non-numeric appid per its docstring instead of 500. Regression tests added.

Backend query.get sweep finished: auth.py refresh -> db.session.get (last one).

910 backend tests pass; pyflakes clean; naming green; frontend build green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

plugins/usb/plugin.py

@@ -8,7 +8,6 @@ from typing import List, Dict, Optional, Type
 from flask import Flask, Blueprint
 
 from shopdb.plugins.base import BasePlugin, PluginMeta
-from shopdb.api import db
 
 from .models import USBDevice, USBDeviceType, USBCheckout
 from .api import usb_bp