Separate model for GQL introspection data (#222)

src-tauri/migrations/20250530174021_graphql-introspection.sql

@@ -0,0 +1,21 @@
+-- Clean up old key/values that are no longer used
+DELETE
+FROM key_values
+WHERE key LIKE 'graphql_introspection::%';
+
+CREATE TABLE graphql_introspections
+(
+
+    id           TEXT                                     NOT NULL
+        PRIMARY KEY,
+    model        TEXT     DEFAULT 'graphql_introspection' NOT NULL,
+    created_at   DATETIME DEFAULT CURRENT_TIMESTAMP       NOT NULL,
+    updated_at   DATETIME DEFAULT CURRENT_TIMESTAMP       NOT NULL,
+    workspace_id TEXT                                     NOT NULL
+        REFERENCES workspaces
+            ON DELETE CASCADE,
+    request_id   TEXT                                     NULL
+        REFERENCES http_requests
+            ON DELETE CASCADE,
+    content      TEXT                                     NULL
+);