Fix: empty Neo4j startup + auto-seed on first boot

Fix APOC: keep plugins in /opt/neo4j/plugins (not /data), use direct neo4j_conn for graph stats

Fix Neo4j auth: disable auth for demo deployment (NEO4J_AUTH=none), simplify entrypoint

Fix Neo4j auth: use NEO4J_AUTH env var (Neo4j 5.x standard), remove broken cypher-shell bootstrap

Initial deployment: ClinicalMatch AI v2.0 — FHIR R4 · MCP (9 tools) · A2A workflow · SHARP compliance · 100k synthetic patients · Neo4j graph · GraphRAG chatbot