fix(file-manager): chunked uploads fail with 'Expected multipart/form-data request' (#1020)

* chore: fix release workflow to merge docs branch

* fix: svg donation generator push fail

* fix: svg donation generator push fail

* Update termix.rb

* fix: svg donation generator push fail

* chore: move donation badge to badges branch to avoid ruleset conflicts

* chore: remove unneeded token from donation badge workflow

* chore: debug donation badge commit step

* fix: escape < character in donation SVG

* fix: point donation badge to badges branch

* chore: remove unused donation badge svg from main

* Add Rack Genius logo to README

Added Rack Genius logo to the README.

* chore: improve donation goal svg generator to include stablecoins

* chore: donation goal generator syntax error

* chore: donation goal generator incorrect docs url usage

* fix(file-manager): use postForm for chunked uploads so multipart content-type is sent

The fileManagerApi axios instance defaults to Content-Type:
application/json. Axios 1.x's default transformRequest converts a
FormData body to JSON whenever the request content type is
application/json, so every chunk POSTed to /ssh/uploadFileChunk
arrived as a JSON body like {"chunk":{}} and the backend rejected
it with 400 'Expected multipart/form-data request'. This breaks all
uploads of files larger than the 1.5 GiB chunking threshold.

The non-chunked path already uses postForm for /ssh/uploadFileStream;
use it for the chunk path too so axios keeps the FormData intact and
the browser sets the multipart boundary.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: LukeGus <bugattiguy527@gmail.com>
Co-authored-by: Luke Gustafson <88517757+LukeGus@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

src/ui/api/ssh-file-operations-api.ts

@@ -410,7 +410,7 @@ export async function uploadSSHFile(
         form.append("totalSize", String(file.size));
         form.append("chunk", chunkBlob, fileName);
 
-        const response = await fileManagerApi.post(
+        const response = await fileManagerApi.postForm(
           "/ssh/uploadFileChunk",
           form,
           { timeout: 0 },