feat: add PostgreSQL persistence foundation

migrations/0001_initial_schema.sql

@@ -0,0 +1,68 @@
+BEGIN;
+
+CREATE TABLE organizations (
+    id UUID PRIMARY KEY,
+    name TEXT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE devices (
+    id UUID PRIMARY KEY,
+    organization_id UUID NOT NULL
+        REFERENCES organizations(id)
+        ON DELETE RESTRICT,
+    device_fingerprint TEXT NOT NULL UNIQUE,
+    hostname TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    last_seen TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE hardware_snapshots (
+    id UUID PRIMARY KEY,
+    device_id UUID NOT NULL
+        REFERENCES devices(id)
+        ON DELETE CASCADE,
+    collected_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    architecture TEXT NOT NULL,
+    manufacturer TEXT,
+    product_name TEXT,
+    product_version TEXT,
+    system_uuid TEXT,
+    system_serial TEXT,
+    board_vendor TEXT,
+    board_name TEXT,
+    board_serial TEXT,
+    bios_vendor TEXT,
+    bios_version TEXT,
+    boot_mode TEXT,
+    secure_boot TEXT,
+    tpm_version TEXT,
+    cpu_model TEXT,
+    cpu_logical_count INTEGER,
+    memory_bytes BIGINT
+);
+
+CREATE TABLE network_interfaces (
+    id UUID PRIMARY KEY,
+    hardware_snapshot_id UUID NOT NULL
+        REFERENCES hardware_snapshots(id)
+        ON DELETE CASCADE,
+    name TEXT NOT NULL,
+    type TEXT NOT NULL,
+    mac_address TEXT NOT NULL
+);
+
+CREATE TABLE storage_devices (
+    id UUID PRIMARY KEY,
+    hardware_snapshot_id UUID NOT NULL
+        REFERENCES hardware_snapshots(id)
+        ON DELETE CASCADE,
+    name TEXT NOT NULL,
+    model TEXT,
+    serial TEXT,
+    size_bytes BIGINT NOT NULL,
+    transport TEXT
+);
+
+COMMIT;

requirements.txt

@@ -11,3 +11,4 @@ starlette==1.3.1
 typing-inspection==0.4.2
 typing_extensions==4.15.0
 uvicorn==0.49.0
+psycopg[binary]==3.3.4