feat(api): enhance image module management and export functionality

- Added read-write access to the darktable SQLite catalog for module parameter edits.
- Implemented new endpoints for exporting images and retrieving full-resolution images.
- Introduced PATCH method for updating module parameters with optional preview.
- Added comprehensive tests for new API functionalities, including module retrieval and error handling.
- Updated CORS headers to support new HTTP methods.
- Created detailed documentation for new API endpoints and module operations.

contrib/darktable-api/bruno/modules/Get Module (Not Found).bru

@@ -0,0 +1,31 @@
+meta {
+  name: Get Module (Not Found)
+  type: http
+  seq: 4
+}
+
+get {
+  url: {{baseUrl}}/api/v1/images/{{imageId}}/modules/nonexistent_module
+  body: none
+  auth: bearer
+}
+
+auth:bearer {
+  token: {{accessToken}}
+}
+
+tests {
+  test("returns 404", function() {
+    expect(res.status).to.equal(404);
+  });
+
+  test("error is module_not_found", function() {
+    expect(res.body.error).to.equal("module_not_found");
+  });
+}
+
+docs {
+  ## Get Module — Not Found
+
+  Verifies 404 is returned for an operation that does not exist in the image history.
+}