Align plugin trigger capability docs

Author: haos

plugins/PLUGIN_GUIDE.md

@@ -101,6 +101,7 @@ The manifest tells Tabularis everything about your plugin.
 | `schemas` | bool | `true` if the database supports named schemas (like PostgreSQL). Controls whether the schema selector is shown in the UI. |
 | `views` | bool | `true` if the database supports views. Enables the views section in the explorer. |
 | `routines` | bool | `true` if the database supports stored procedures/functions. |
+| `triggers` | bool | `true` if the database supports triggers. Enables trigger-related UI for drivers that implement the trigger RPCs. |
 | `file_based` | bool | `true` for local file databases (e.g., SQLite, DuckDB). Replaces host/port with a file path input in the connection form. |
 | `folder_based` | bool | `true` for plugins that connect to a directory rather than a single file (e.g. CSV plugin). Replaces host/port with a folder picker. |
 | `no_connection_required` | bool | `true` for API-based plugins that need no host, port, or credentials (e.g. a public REST API). Hides the entire connection form — the user only fills in the connection name. |
@@ -640,8 +641,8 @@ Get column information for a table.
     "name": "id",
     "data_type": "INTEGER",
     "is_nullable": false,
-    "column_default": null,
-    "is_primary_key": true,
+    "default_value": null,
+    "is_pk": true,
     "is_auto_increment": true,
     "comment": null
   }
@@ -798,6 +799,61 @@ Get the SQL body of a stored routine.
 
 ---
 
+### Triggers
+
+Set `capabilities.triggers` to `true` when your driver implements the trigger RPCs. Tabularis uses this flag to show trigger-related UI.
+
+#### `get_triggers`
+
+List triggers in a schema/database.
+
+**Params:** `{ "params": ConnectionParams, "schema": string | null }`
+
+**Result:**
+```json
+[
+  {
+    "name": "users_audit_trg",
+    "table_name": "users",
+    "event": "INSERT OR UPDATE",
+    "timing": "AFTER",
+    "schema": "public"
+  }
+]
+```
+
+---
+
+#### `get_trigger_definition`
+
+Get the SQL definition of a trigger.
+
+**Params:** `{ "params": ConnectionParams, "schema": string | null, "trigger_name": string, "table_name": string }`
+
+**Result:** `"CREATE TRIGGER users_audit_trg ..."`
+
+---
+
+#### `create_trigger`
+
+Create a trigger from SQL generated by the UI or entered in raw SQL mode.
+
+**Params:** `{ "params": ConnectionParams, "schema": string | null, "trigger_sql": string }`
+
+**Result:** `null` on success, or an error.
+
+---
+
+#### `drop_trigger`
+
+Drop a trigger.
+
+**Params:** `{ "params": ConnectionParams, "schema": string | null, "trigger_name": string, "table_name": string }`
+
+**Result:** `null` on success, or an error.
+
+---
+
 ### Query Execution
 
 #### `execute_query`

plugins/manifest.schema.json

@@ -75,6 +75,11 @@
           "type": "boolean",
           "description": "true to enable stored procedures and functions in the database explorer."
         },
+        "triggers": {
+          "type": "boolean",
+          "default": false,
+          "description": "true if the driver supports trigger metadata and trigger management RPCs."
+        },
         "file_based": {
           "type": "boolean",
           "description": "true for local file databases (e.g. SQLite, DuckDB). Replaces the host/port fields with a file path input."