feat(devcontainer): initialize redbot instance in postCreateCommand

for some reason, the default `.data` mount is not owned by the `vscode` user (on my system at least), so we `chown` it to ensure that `uv run redbot-setup` can write to the directory.

.devcontainer/Dockerfile

@@ -31,4 +31,5 @@ COPY --from=uv --chown=vscode: /uv /uvx /bin/
 COPY --from=python --chown=vscode: /usr/local /usr/local
 
 RUN ln -s /usr/local/bin/python3.11 /usr/local/bin/python; \
-    python --version
+    python --version; \
+    python -m ensurepip

.devcontainer/devcontainer.json

@@ -30,6 +30,6 @@
     "PROJECT_DIR": "/workspaces/SeaCogs"
   },
   "mounts": ["source=seacogs-persistent-data,target=/workspaces/SeaCogs/.data,type=volume"],
-  "postCreateCommand": "uv sync --frozen",
+  "postCreateCommand": "uv sync --frozen && sudo chown -R vscode:vscode /workspaces/SeaCogs/.data && uv run redbot-setup --no-prompt --instance-name=local --data-path=/workspaces/SeaCogs/.data --backend=json",
   "remoteUser": "vscode"
 }

.vscode/launch.json

@@ -9,7 +9,7 @@
             "type": "debugpy",
             "request": "launch",
             "module": "redbot",
-            "args": ["local"]
+            "args": ["local", "--dev", "-vvv"]
         }
     ]
 }