fix(ci): disable OCM signed requests for federated share tests

The federated editing Cypress tests were failing because self-federated
OCM share notifications were being rejected due to RFC 9421 signature
verification failures. The CI server runs over plain HTTP, but
OCMSignatoryManager::fetchJwks() hardcodes https:// for JWKS URLs,
causing the fetch to fail. This results in confirmSignedOrigin()
throwing "instance is supposed to sign its request" and returning
HTTP 400, so the pending share is never created for the recipient and
document.odt never appears in the files list.

Set ocm_signed_request_disabled=true to bypass the signing requirement
in the HTTP test environment, where inter-server TLS is unavailable.
Also add an early assertion in shareFileToRemoteUser() so any future
federation setup failures produce a clear Cypress error rather than
silently cascading into a timeout on cy.openFile().

Assisted-by: ClaudeCode:claude-sonnet-4-6
Signed-off-by: Elizabeth Danzberger <elizabeth@elzody.dev>

Author: elzody

.github/workflows/cypress-e2e.yml

@@ -154,6 +154,7 @@ jobs:
           php occ config:app:set richdocuments wopi_url --value="http://localhost:9980"
           php occ config:app:set richdocuments public_wopi_url --value="http://localhost:9980"
           php occ config:system:set allow_local_remote_servers --value true --type bool
+          php occ config:app:set core ocm_signed_request_disabled --value true --type bool
           php occ richdocuments:activate-config
 
           curl http://admin:admin@localhost:8081/ocs/v1.php/cloud/capabilities\?format\=json -H 'OCS-APIRequest: true'

cypress/support/commands.js

@@ -145,6 +145,8 @@ Cypress.Commands.add('shareFileToRemoteUser', (user, path, targetUser, shareData
 			url: `${url}/ocs/v2.php/apps/files_sharing/api/v1/remote_shares/pending?format=json`,
 		})
 	}).then(({ body }) => {
+		cy.wrap(body.ocs.data).should('have.length.greaterThan', 0,
+			'No pending federated shares found for recipient — federation setup likely failed')
 		for (const index in body.ocs.data) {
 			cy.ocsRequest(targetUser, {
 				method: 'POST',