docs(api): add Bruno collection for Jetstream API

Excludes docs/ from deno fmt and deno lint so the Bruno
files don't break formatting and lint checks in CI.

docs/Remanso Jetstream API/auth/GitHub OAuth proxy.bru

@@ -0,0 +1,84 @@
+meta {
+  name: GitHub OAuth proxy
+  type: http
+  seq: 1
+}
+
+get {
+  url: {{baseUrl}}/auth/github
+  body: none
+  auth: inherit
+}
+
+params:query {
+  code: 
+  ~type: 
+}
+
+example {
+  name: 200 Response
+  description: GitHub access-token response (shape determined by GitHub).
+  
+  request: {
+    url: {{baseUrl}}/auth/github
+    method: GET
+    mode: none
+    params:query: {
+      code: 
+      ~type: 
+    }
+  }
+  
+  response: {
+    headers: {
+      Content-Type: application/json
+    }
+  
+    status: {
+      code: 200
+      text: OK
+    }
+  
+    body: {
+      type: json
+      content: '''
+        {}
+      '''
+    }
+  }
+}
+
+example {
+  name: 400 Response
+  description: Malformed input.
+  
+  request: {
+    url: {{baseUrl}}/auth/github
+    method: GET
+    mode: none
+    params:query: {
+      code: 
+      ~type: 
+    }
+  }
+  
+  response: {
+    headers: {
+      Content-Type: application/json
+    }
+  
+    status: {
+      code: 400
+      text: Bad Request
+    }
+  
+    body: {
+      type: json
+      content: '''
+        {
+          "error": ""
+        }
+      '''
+    }
+  }
+}