chore(devcontainer): add setup-git.sh script for host Git configuration

.devcontainer/devcontainer.json

@@ -1,7 +1,7 @@
 {
     "name": "jpawlowski/hass.tibber_prices",
     "image": "mcr.microsoft.com/devcontainers/python:3.13",
-    "postCreateCommand": "scripts/setup/setup",
+    "postCreateCommand": "bash .devcontainer/setup-git.sh && scripts/setup/setup",
     "postStartCommand": "scripts/motd",
     "containerEnv": {
         "PYTHONASYNCIODEBUG": "1"
@@ -102,13 +102,20 @@
                         ],
                         "url": "${containerWorkspaceFolder}/schemas/json/translation_schema.json"
                     }
-                ]
+                ],
+                "git.useConfigOnly": false
             }
         }
     },
+    "mounts": [
+        "source=${localEnv:HOME}${localEnv:USERPROFILE}/.gitconfig,target=/home/vscode/.gitconfig.host,type=bind,consistency=cached"
+    ],
     "remoteUser": "vscode",
     "features": {
         "ghcr.io/devcontainers/features/github-cli:1": {},
+        "ghcr.io/flexwie/devcontainer-features/op:1": {
+            "version": "latest"
+        },
         "ghcr.io/devcontainers/features/node:1": {
             "version": "22"
         },

.devcontainer/setup-git.sh

@@ -0,0 +1,99 @@
+#!/bin/bash
+# Setup Git configuration from host
+# This script is idempotent and can be run multiple times safely.
+
+# Exit on error
+set -e
+
+# Check if host gitconfig exists
+if [ ! -f ~/.gitconfig.host ]; then
+    echo "No host .gitconfig found, skipping Git setup"
+    exit 0
+fi
+
+echo "Setting up Git configuration from host..."
+
+# Extract and set user info
+USER_NAME=$(grep -A 2 '^\[user\]' ~/.gitconfig.host | grep 'name' | sed 's/.*= //' | xargs)
+USER_EMAIL=$(grep -A 2 '^\[user\]' ~/.gitconfig.host | grep 'email' | sed 's/.*= //' | xargs)
+
+if [ -n "$USER_NAME" ]; then
+    CURRENT_NAME=$(git config --global user.name 2>/dev/null || echo "")
+    if [ "$CURRENT_NAME" != "$USER_NAME" ]; then
+        git config --global user.name "$USER_NAME"
+        echo "✓ Set user.name: $USER_NAME"
+    else
+        echo "  user.name already set: $USER_NAME"
+    fi
+fi
+
+if [ -n "$USER_EMAIL" ]; then
+    CURRENT_EMAIL=$(git config --global user.email 2>/dev/null || echo "")
+    if [ "$CURRENT_EMAIL" != "$USER_EMAIL" ]; then
+        git config --global user.email "$USER_EMAIL"
+        echo "✓ Set user.email: $USER_EMAIL"
+    else
+        echo "  user.email already set: $USER_EMAIL"
+    fi
+fi
+
+# Set safe defaults for container
+git config --global init.defaultBranch main
+git config --global pull.rebase false
+git config --global merge.conflictStyle diff3
+git config --global submodule.recurse true
+git config --global color.ui true
+echo "✓ Set Git defaults"
+
+# Copy useful aliases (skip if they have macOS-specific paths)
+if grep -q '^\[alias\]' ~/.gitconfig.host; then
+    echo "✓ Syncing Git aliases..."
+
+    # First, collect all aliases from host config
+    TEMP_ALIASES=$(mktemp)
+    sed -n '/^\[alias\]/,/^\[/p' ~/.gitconfig.host | \
+        grep -v '^\[' | \
+        grep -v '^$' | \
+        while IFS= read -r line; do
+            # Skip aliases with macOS-specific paths
+            if echo "$line" | grep -q -E '/(Applications|usr/local)'; then
+                continue
+            fi
+            echo "$line" >> "$TEMP_ALIASES"
+        done
+
+    # Apply each alias (git config --global overwrites existing values = idempotent)
+    if [ -s "$TEMP_ALIASES" ]; then
+        while IFS= read -r line; do
+            ALIAS_NAME=$(echo "$line" | awk '{print $1}')
+            ALIAS_VALUE=$(echo "$line" | sed "s/^$ALIAS_NAME = //")
+            git config --global "alias.$ALIAS_NAME" "$ALIAS_VALUE" 2>/dev/null || true
+        done < "$TEMP_ALIASES"
+        echo "  Synced $(wc -l < "$TEMP_ALIASES") aliases"
+    fi
+
+    rm -f "$TEMP_ALIASES"
+fi
+
+# Disable GPG signing in container (1Password SSH signing doesn't work in DevContainers)
+# SSH agent forwarding works for git push/pull, but SSH signing requires direct
+# access to 1Password app which isn't available in the container.
+#
+# For signed commits: Make final commits on host macOS where 1Password is available.
+# The container is for development/testing - pre-commit hooks will still run.
+CURRENT_SIGNING=$(git config --global commit.gpgsign 2>/dev/null || echo "false")
+if [ "$CURRENT_SIGNING" != "false" ]; then
+    echo "ℹ Disabling commit signing in container (1Password not accessible)"
+    echo "  → For signed commits, commit from macOS terminal outside container"
+    git config --global commit.gpgsign false
+else
+    echo "  Commit signing already disabled"
+fi
+
+# Keep the signing key info for reference, but don't use it
+SIGNING_KEY=$(grep 'signingkey' ~/.gitconfig.host 2>/dev/null | sed 's/.*= //' | xargs || echo "")
+if [ -n "$SIGNING_KEY" ]; then
+    echo "  → Your signing key: ${SIGNING_KEY:0:20}... (available on host)"
+fi
+
+echo "✓ Git configuration complete"