Add 6 flag-based campaign segments to build_trucking_campaigns.py keyed off
fmcsa_carriers.deficiency_flags: for_hire_boc3, irp_ifta, intrastate_authority,
state_weight_tax (per-state LP), state_emissions (CA->ca-mcp-carb), hazmat.
Each injects an order-LP link into subscriber attribs (lp_link) and only
schedules when its CAMPAIGN_*_ID source template env is set (nightly run never
breaks on unconfigured templates). Adds --list-segments audience report and a
synthetic-data segment test (fixed a real psycopg2 % escaping bug in LIKE).
Cross-references every DOT/state/hazmat slug across COMPLIANCE_SERVICES,
REQUIRED_FIELDS, SERVICE_META, INTAKE_MANIFEST, and SERVICE_HANDLERS, and
verifies every required field is collectible by its assigned intake steps.
Caught + fixed missing usdot-reactivation SERVICE_META entry. 24/24 pass.
