update databasing system with minimum API, schema parsing and FreeCAD

integration

migrations/002_sequence_by_name.sql

@@ -0,0 +1,35 @@
+-- Migration: 002_sequence_by_name
+-- Adds a sequence table that uses schema name instead of UUID for simpler operation
+
+BEGIN;
+
+-- Create a simpler sequences table using schema name
+CREATE TABLE IF NOT EXISTS sequences_by_name (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    schema_name TEXT NOT NULL,
+    scope TEXT NOT NULL,
+    current_value INTEGER NOT NULL DEFAULT 0,
+    UNIQUE(schema_name, scope)
+);
+
+CREATE INDEX IF NOT EXISTS idx_sequences_by_name ON sequences_by_name(schema_name, scope);
+
+-- Function to get next sequence by schema name
+CREATE OR REPLACE FUNCTION next_sequence_by_name(
+    p_schema_name TEXT,
+    p_scope TEXT
+) RETURNS INTEGER AS $$
+DECLARE
+    v_next INTEGER;
+BEGIN
+    INSERT INTO sequences_by_name (schema_name, scope, current_value)
+    VALUES (p_schema_name, p_scope, 1)
+    ON CONFLICT (schema_name, scope) DO UPDATE
+    SET current_value = sequences_by_name.current_value + 1
+    RETURNING current_value INTO v_next;
+
+    RETURN v_next;
+END;
+$$ LANGUAGE plpgsql;
+
+COMMIT;