diff --git a/api-v3/src/database/migrations/1789668000000-phase-f2-1-field-inventory.ts b/api-v3/src/database/migrations/1789668000000-phase-f2-1-field-inventory.ts
new file mode 100644
index 0000000..3c0ffb2
--- /dev/null
+++ b/api-v3/src/database/migrations/1789668000000-phase-f2-1-field-inventory.ts
@@ -0,0 +1,136 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+function quoteIdentifier(identifier: string): string {
+  return `"${identifier.replaceAll('"', '""')}"`;
+}
+
+export class PhaseF21FieldInventory1789668000000 implements MigrationInterface {
+  name = 'PhaseF21FieldInventory1789668000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      CREATE TABLE field_inventory_code_sequences (
+        year integer PRIMARY KEY,
+        last_value integer NOT NULL DEFAULT 0,
+        CONSTRAINT chk_field_inventory_code_sequences_year CHECK (year BETWEEN 2000 AND 9999),
+        CONSTRAINT chk_field_inventory_code_sequences_value CHECK (last_value >= 0)
+      )
+    `);
+
+    await queryRunner.query(`
+      CREATE TABLE asset_field_capture_events (
+        id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+        visit_id uuid NOT NULL,
+        asset_id uuid NOT NULL,
+        media_id uuid,
+        event_type varchar(24) NOT NULL,
+        device_latitude numeric(9, 6) NOT NULL,
+        device_longitude numeric(9, 6) NOT NULL,
+        device_accuracy_m numeric(12, 3),
+        device_captured_at timestamptz NOT NULL,
+        device_label varchar(255),
+        exif_latitude numeric(9, 6),
+        exif_longitude numeric(9, 6),
+        exif_captured_at timestamptz,
+        created_by uuid NOT NULL,
+        created_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+        CONSTRAINT fk_asset_field_capture_visit FOREIGN KEY (visit_id)
+          REFERENCES inspection_visits(id) ON DELETE RESTRICT,
+        CONSTRAINT fk_asset_field_capture_asset FOREIGN KEY (asset_id)
+          REFERENCES assets(id) ON DELETE RESTRICT,
+        CONSTRAINT fk_asset_field_capture_media FOREIGN KEY (media_id)
+          REFERENCES asset_media(id) ON DELETE RESTRICT,
+        CONSTRAINT fk_asset_field_capture_created_by FOREIGN KEY (created_by)
+          REFERENCES users(id) ON DELETE RESTRICT,
+        CONSTRAINT chk_asset_field_capture_event_type CHECK (event_type IN ('CREATED','PHOTO')),
+        CONSTRAINT chk_asset_field_capture_device_coordinates CHECK (
+          device_latitude BETWEEN -90 AND 90
+          AND device_longitude BETWEEN -180 AND 180
+        ),
+        CONSTRAINT chk_asset_field_capture_accuracy CHECK (
+          device_accuracy_m IS NULL OR device_accuracy_m BETWEEN 0 AND 100000
+        ),
+        CONSTRAINT chk_asset_field_capture_exif_coordinates CHECK (
+          (exif_latitude IS NULL AND exif_longitude IS NULL)
+          OR (
+            exif_latitude IS NOT NULL
+            AND exif_longitude IS NOT NULL
+            AND exif_latitude BETWEEN -90 AND 90
+            AND exif_longitude BETWEEN -180 AND 180
+          )
+        ),
+        CONSTRAINT chk_asset_field_capture_media_event CHECK (
+          (event_type = 'CREATED' AND media_id IS NULL)
+          OR (event_type = 'PHOTO' AND media_id IS NOT NULL)
+        )
+      )
+    `);
+    await queryRunner.query(`CREATE INDEX idx_asset_field_capture_visit ON asset_field_capture_events (visit_id, created_at, id)`);
+    await queryRunner.query(`CREATE INDEX idx_asset_field_capture_asset ON asset_field_capture_events (asset_id, created_at, id)`);
+    await queryRunner.query(`CREATE UNIQUE INDEX uq_asset_field_capture_media ON asset_field_capture_events (media_id) WHERE media_id IS NOT NULL`);
+
+    await queryRunner.query(`
+      ALTER TABLE inspection_visit_assets
+      DROP CONSTRAINT chk_inspection_visit_assets_planning_source
+    `);
+    await queryRunner.query(`
+      ALTER TABLE inspection_visit_assets
+      ADD CONSTRAINT chk_inspection_visit_assets_planning_source CHECK (
+        planning_source IN ('LEGACY','AUTOMATIC','PREVENTIVE','VERIFICATION','FIELD')
+      )
+    `);
+
+    await queryRunner.query(`
+      ALTER TABLE inspection_visit_asset_events
+      DROP CONSTRAINT chk_inspection_visit_asset_events_type
+    `);
+    await queryRunner.query(`
+      ALTER TABLE inspection_visit_asset_events
+      ADD CONSTRAINT chk_inspection_visit_asset_events_type CHECK (
+        event_type IN ('LEGACY_INCLUDED','AUTO_INCLUDED','PREVENTIVE_INCLUDED','VERIFICATION_INCLUDED','FIELD_INCLUDED','EXCLUDED','REINCLUDED')
+      )
+    `);
+
+    const appRole = process.env.DB_APP_USER;
+    if (!appRole) throw new Error('Missing required environment variable: DB_APP_USER');
+    const applicationRole = quoteIdentifier(appRole);
+    await queryRunner.query(`GRANT SELECT, INSERT, UPDATE ON TABLE field_inventory_code_sequences TO ${applicationRole}`);
+    await queryRunner.query(`GRANT SELECT, INSERT ON TABLE asset_field_capture_events TO ${applicationRole}`);
+    await queryRunner.query(`REVOKE UPDATE, DELETE ON TABLE asset_field_capture_events FROM ${applicationRole}`);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      DO $$
+      BEGIN
+        IF EXISTS (SELECT 1 FROM asset_field_capture_events LIMIT 1) THEN
+          RAISE EXCEPTION 'F2.1 no puede revertirse: existen capturas GPS/EXIF de campo';
+        END IF;
+        IF EXISTS (SELECT 1 FROM inspection_visit_assets WHERE planning_source = 'FIELD' LIMIT 1) THEN
+          RAISE EXCEPTION 'F2.1 no puede revertirse: existen registros seleccionados o creados en campo';
+        END IF;
+        IF EXISTS (SELECT 1 FROM inspection_visit_asset_events WHERE event_type = 'FIELD_INCLUDED' LIMIT 1) THEN
+          RAISE EXCEPTION 'F2.1 no puede revertirse: existen eventos de Inventario de campo';
+        END IF;
+      END
+      $$
+    `);
+
+    await queryRunner.query(`ALTER TABLE inspection_visit_asset_events DROP CONSTRAINT chk_inspection_visit_asset_events_type`);
+    await queryRunner.query(`
+      ALTER TABLE inspection_visit_asset_events
+      ADD CONSTRAINT chk_inspection_visit_asset_events_type CHECK (
+        event_type IN ('LEGACY_INCLUDED','AUTO_INCLUDED','PREVENTIVE_INCLUDED','VERIFICATION_INCLUDED','EXCLUDED','REINCLUDED')
+      )
+    `);
+    await queryRunner.query(`ALTER TABLE inspection_visit_assets DROP CONSTRAINT chk_inspection_visit_assets_planning_source`);
+    await queryRunner.query(`
+      ALTER TABLE inspection_visit_assets
+      ADD CONSTRAINT chk_inspection_visit_assets_planning_source CHECK (
+        planning_source IN ('LEGACY','AUTOMATIC','PREVENTIVE','VERIFICATION')
+      )
+    `);
+    await queryRunner.query(`DROP TABLE asset_field_capture_events`);
+    await queryRunner.query(`DROP TABLE field_inventory_code_sequences`);
+  }
+}