feat: Add APIs for linear integration (#9346)

config/features.yml

@@ -83,3 +83,5 @@
 - name: help_center_embedding_search
   enabled: false
   premium: true
+- name: linear_integration
+  enabled: false

config/integration/apps.yml

@@ -159,3 +159,27 @@ openai:
     },
   ]
   visible_properties: ['api_key', 'label_suggestion']
+linear:
+  id: linear
+  logo: linear.png
+  i18n_key: linear
+  action: /linear
+  hook_type: account
+  allow_multiple_hooks: false
+  settings_json_schema: {
+    "type": "object",
+    "properties": {
+        "api_key": { "type": "string" },
+      },
+    "required": ["api_key"],
+    "additionalProperties": false,
+  }
+  settings_form_schema: [
+    {
+      "label": "API Key",
+      "type": "text",
+      "name": "api_key",
+      "validation": "required",
+    },
+  ]
+  visible_properties: []

config/locales/en.yml

@@ -224,6 +224,9 @@ en:
     openai:
       name: "OpenAI"
       description: "Integrate powerful AI features into Chatwoot by leveraging the GPT models from OpenAI."
+    linear:
+      name: "Linear"
+      description: "Create Linear issues from conversations, or link existing ones for seamless tracking."
   public_portal:
     search:
       search_placeholder: Search for article by title or body...

config/routes.rb

@@ -227,6 +227,17 @@ Rails.application.routes.draw do
                 post :add_participant_to_meeting
               end
             end
+            resource :linear, controller: 'linear', only: [] do
+              collection do
+                get :teams
+                get :team_entities
+                post :create_issue
+                post :link_issue
+                post :unlink_issue
+                get :search_issue
+                get :linked_issues
+              end
+            end
           end
           resources :working_hours, only: [:update]