landvex: IOL v3 + Identify API + Neo4j-graf + byggpipeline

- FastAPI Identify API (port 8081)
- Neo4j propertygraf (64 noder, 80 kanter)
- Ingest-pipeline (Python)
- Byggscript + integrationstester
- Docker Compose setup

projects/landvex/db/load_graph.cypher

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+// Landvex IOL — ladda grafen i Neo4j
+// Kör: cat db/load_graph.cypher | cypher-shell -u neo4j -p landvex2024
+
+CREATE CONSTRAINT lvx_id_unique IF NOT EXISTS
+FOR (n:Objekt) REQUIRE n.lvx_id IS UNIQUE;
+
+:auto LOAD CSV WITH HEADERS FROM 'file:///noder.csv' AS row
+CALL {
+  WITH row
+  CREATE (o:Objekt {
+    lvx_id: row.lvx_id,
+    posttyp: row.posttyp,
+    namn_sv: row.namn_sv,
+    namn_en: row.namn_en,
+    doman: row.doman,
+    tier: toInteger(row.tier),
+    verifieringsniva: row.verifieringsniva,
+    konfidens: toFloat(row.konfidens)
+  })
+} IN TRANSACTIONS OF 1000 ROWS;
+
+:auto LOAD CSV WITH HEADERS FROM 'file:///kanter.csv' AS row
+CALL {
+  WITH row
+  MATCH (a:Objekt {lvx_id: row.subjekt})
+  MATCH (b:Objekt {lvx_id: row.objekt})
+  CREATE (a)-[r:RELATION {
+    predikat: row.predikat,
+    niva: row.niva,
+    beskrivning: row.beskrivning
+  }]->(b)
+} IN TRANSACTIONS OF 1000 ROWS;
+
+// Index för snabb sökning
+CREATE TEXT INDEX objekt_namn IF NOT EXISTS
+FOR (o:Objekt) ON (o.namn_sv, o.namn_en);