fix: keep job argument assets when the script source is unreadable

A job can be visible to someone with no read grant on its script. The assets
viewer awaited the script fetch before parsing the job arguments, so a denial
rejected the whole promise and the tab reported no assets at all, dropping the
argument-derived ones that need no script access.

Also drop the `authed` query parameter from the dereferenced OpenAPI copies,
which are served at /openapi.yaml and /openapi.json and still advertised a
parameter the handler no longer accepts.

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

backend/windmill-api/openapi-deref.json

@@ -13765,13 +13765,6 @@
             "schema": {
               "type": "boolean"
             }
-          },
-          {
-            "name": "authed",
-            "in": "query",
-            "schema": {
-              "type": "boolean"
-            }
           }
         ],
         "responses": {

backend/windmill-api/openapi-deref.yaml

@@ -14328,10 +14328,6 @@ paths:
           in: query
           schema:
             type: boolean
-        - name: authed
-          in: query
-          schema:
-            type: boolean
       responses:
         '200':
           description: script details

frontend/src/lib/components/assets/JobAssetsViewer.svelte

@@ -37,11 +37,14 @@
 		if (job.job_kind === 'script') {
 			let code = job.raw_code
 			if (!code && job.script_hash && $workspaceStore) {
+				// A job can be visible to someone with no read permission on its script.
+				// Only the source-derived assets are then unavailable, so the argument-derived
+				// ones below must still be parsed rather than lost with the whole promise.
 				const script = await ScriptService.getScriptByHash({
 					workspace: $workspaceStore,
 					hash: job.script_hash
-				})
-				code = script.content
+				}).catch(() => undefined)
+				code = script?.content
 			}
 			let inferAssetsResult = await inferAssets(job.language!, code ?? '')
 			let assets = inferAssetsResult.status === 'ok' ? inferAssetsResult.assets : []