File refs in one table

Added a file service
Refactored evidence and vendor compliance associated services and resolvers
Created SQL migration scripts
Updated GraphQL schema accordingly and the UI components
Removed unused methods and resolvers for evidence service

Signed-off-by: Yannis Varni <yannis@edinomis.fr>

pkg/coredata/migrations/20251003T151644Z.sql

@@ -0,0 +1,41 @@
+ALTER TABLE
+    vendor_compliance_reports
+    ADD COLUMN report_file_id text
+    REFERENCES files(id)
+    ON UPDATE CASCADE
+    ON DELETE RESTRICT;
+
+WITH
+    /* 25 is for FileEntityType */
+    vcr_files AS (
+        SELECT
+            vcr.id as report_id,
+            generate_gid(decode_base64_unpadded(vcr.tenant_id), 25) as file_id,
+            vcr.tenant_id,
+            'probod' as bucket_name,
+            'application/pdf' as mime_type,
+            vcr.report_name,
+            vcr.file_key,
+            vcr.file_size,
+            vcr.created_at,
+            vcr.updated_at
+        FROM vendor_compliance_reports vcr
+    ),
+    inserted_files AS (
+        INSERT INTO files (id, tenant_id, bucket_name, mime_type, file_name, file_key, file_size, created_at, updated_at)
+            SELECT file_id, tenant_id, bucket_name, mime_type, report_name, file_key::uuid, file_size, created_at, updated_at
+            FROM vcr_files
+            RETURNING id, tenant_id
+    )
+SELECT vf.report_id, vf.file_id
+INTO TEMP TABLE file_vcr_mapping
+FROM vcr_files vf;
+
+UPDATE vendor_compliance_reports
+SET report_file_id = fv.file_id
+FROM file_vcr_mapping fv
+WHERE vendor_compliance_reports.id = fv.report_id;
+
+ALTER TABLE vendor_compliance_reports
+    ALTER COLUMN file_key DROP NOT NULL,
+    ALTER COLUMN file_size DROP NOT NULL;