chore: add a devcontainer setup (#50)

Add a devcontainer setup and remove a few redundent pre-commit hooks

Reviewed-on: #50

.devcontainer/devcontainer.json

@@ -0,0 +1,37 @@
+{
+  "name": "JS Dev Container",
+  "image": "mcr.microsoft.com/devcontainers/javascript-node:1-20",
+  "features": {
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/devcontainers/features/git-lfs:1": {},
+    "ghcr.io/devcontainers-extra/features/pre-commit:2": {},
+    "ghcr.io/devcontainers-extra/features/npm-packages:1": {
+      "packages": "@google/gemini-cli"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "esbenp.prettier-vscode",
+        "vitest.explorer",
+        "google.gemini-cli-vscode-ide-companion",
+        "google.geminicodeassist"
+      ],
+      "settings": {
+        "editor.formatOnSave": true,
+        "editor.defaultFormatter": "esbenp.prettier-vscode"
+      }
+    }
+  },
+  "postStartCommand": "bash .devcontainer/setup.sh",
+  "remoteUser": "node",
+  "updateRemoteUserUID": true,
+  "mounts": [
+    "source=pipx-venvs,target=/home/node/.local/share/pipx,type=volume",
+    "source=pipx-bin,target=/home/node/.local/bin,type=volume",
+    "source=pre-commit-cache,target=/home/node/.cache/pre-commit,type=volume",
+    "source=${localEnv:USERPROFILE}/.gemini,target=/home/node/.gemini,type=bind",
+    "source=gvscode-extensions,target=/home/node/.cache/google-vscode-extension,type=volume"
+  ]
+}

.devcontainer/setup.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# 1. Fix Git Permissions (Critical in Docker)
+git config --global --add safe.directory $(pwd)
+
+# In your setup.sh or postCreateCommand
+sudo chown -R node:node /home/node/.cache/
+
+# 2. Re-connect Git Hooks
+pre-commit install
+pre-commit install-hooks