feat: remove OpenCode assistant mode

backend/db/models.py

@@ -148,7 +148,7 @@ class Assistant(Base):
 
     id: Mapped[str] = mapped_column(String(40), primary_key=True)  # asst_xxx
     name: Mapped[str] = mapped_column(String(128))
-    # prompt|workflow|dify|fastgpt|opencode;创建后可改
+    # prompt|workflow|dify|fastgpt;创建后可改
     type: Mapped[str] = mapped_column(String(16), index=True, default="prompt")
     runtime_mode: Mapped[str] = mapped_column(String(16), default="pipeline")
     greeting: Mapped[str] = mapped_column(String(2048), default="")
@@ -174,12 +174,12 @@ class Assistant(Base):
     )
 
     # ---- 瘦类型专属字段(真列,稀疏:按 type 用其中几列) ----
-    prompt: Mapped[str] = mapped_column(Text, default="")    # prompt / opencode
+    prompt: Mapped[str] = mapped_column(Text, default="")    # prompt
     dynamic_variable_definitions: Mapped[dict] = mapped_column(JSON, default=dict)
     built_in_tools: Mapped[dict] = mapped_column(JSONB, default=dict)
     analysis_config: Mapped[dict] = mapped_column(JSONB, default=dict)
-    api_url: Mapped[str] = mapped_column(String(512), default="")    # dify / fastgpt / opencode
-    api_key: Mapped[str] = mapped_column(String(512), default="")    # dify / fastgpt / opencode(打码/哨兵)
+    api_url: Mapped[str] = mapped_column(String(512), default="")    # dify / fastgpt
+    api_key: Mapped[str] = mapped_column(String(512), default="")    # dify / fastgpt(打码/哨兵)
     app_id: Mapped[str] = mapped_column(String(128), default="")     # fastgpt
     # workflow 专属:图(nodes/edges)。要版本化时再迁出到 assistant_workflow 表
     graph: Mapped[dict] = mapped_column(JSON, default=dict)

backend/db/seed_assistants.sql

@@ -22,10 +22,6 @@ INSERT INTO assistants (
   ('asst_004', 'FastGPT 售后助手', 'fastgpt', 'pipeline', '', TRUE,
    FALSE, NULL,
    NULL, '', 'https://api.fastgpt.in/api/v1/chat/completions', 'fastgpt-demo-key', 'app-fastgpt-001', '{}',
-   '{"execution_mode":"sequential","opening_mode":"interruptible","entry_mode":"wait_user","actions":[],"opening_message":null}'),
-  ('asst_005', 'OpenCode 代码助手', 'opencode', 'pipeline', '', TRUE,
-   FALSE, NULL,
-   NULL, '你是一个代码助手的语音界面，用简洁口语回答工程问题。', 'http://localhost:4096', 'opencode-demo-key', '', '{}',
    '{"execution_mode":"sequential","opening_mode":"interruptible","entry_mode":"wait_user","actions":[],"opening_message":null}')
 ON CONFLICT (id) DO NOTHING;
 
@@ -40,10 +36,7 @@ VALUES
   ('asst_003', 'Agent', 'model_014', '{}'),
   ('asst_004', 'ASR', 'model_002', '{}'),
   ('asst_004', 'TTS', 'model_004', '{}'),
-  ('asst_004', 'Agent', 'model_015', '{}'),
-  ('asst_005', 'ASR', 'model_002', '{}'),
-  ('asst_005', 'TTS', 'model_004', '{}'),
-  ('asst_005', 'Agent', 'model_016', '{}')
+  ('asst_004', 'Agent', 'model_015', '{}')
 ON CONFLICT (assistant_id, capability) DO UPDATE SET
   model_resource_id = EXCLUDED.model_resource_id,
   updated_at = now();

backend/db/seed_model_resources.sql

@@ -48,9 +48,6 @@ VALUES
   ('model_015', 'FastGPT 售后应用', 'Agent', 'fastgpt',
    '{"apiUrl":"https://api.fastgpt.in/api/v1/chat/completions","appId":"app-fastgpt-001"}',
    '{"apiKey":"replace-me"}', FALSE, TRUE, FALSE),
-  ('model_016', 'OpenCode 服务', 'Agent', 'opencode',
-   '{"apiUrl":"http://localhost:4096"}',
-   '{"apiKey":"replace-me"}', FALSE, TRUE, FALSE),
   ('model_017', 'Qwen-Audio 3.0 Realtime', 'Realtime', 'qwen-audio-realtime',
    '{"modelId":"qwen-audio-3.0-realtime-flash","apiUrl":"wss://replace-with-workspace-id.cn-beijing.maas.aliyuncs.com/api-ws/v1/realtime","voice":"longanqian","turnDetection":"server_vad","vadThreshold":0.5,"silenceDurationMs":800,"maxHistoryTurns":20}',
    '{"apiKey":"replace-me"}', FALSE, TRUE, FALSE)