refactor: move all remaining files to orig/ directory

Completed clean root directory structure:
- Root now contains only: .git, .env, docs/, orig/
- Moved all remaining files and directories to orig/:
  - Config files (.claude, .dockerignore, .drone.yml, etc.)
  - All .env variants (except active .env)
  - Git config (.gitconfig, .github, .gitignore, etc.)
  - Tool configs (.golangci.yml, .revive.toml, etc.)
  - Documentation (*.md files, @prompts)
  - Build files (Dockerfiles, Makefile, go.mod, go.sum)
  - Docker compose files
  - All source directories (scripts, tests, tools, etc.)
  - Runtime directories (logs, monitoring, reports)
  - Dependency files (node_modules, lib, cache)
  - Special files (--delete)

- Removed empty runtime directories (bin/, data/)

V2 structure is now clean:
- docs/planning/ - V2 planning documents
- orig/ - Complete V1 codebase preserved
- .env - Active environment config (not in git)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

orig/scripts/install-git-hooks.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# Install Git Hooks for Auto-Update
+
+set -e
+
+PROJECT_DIR=$(cd "$(dirname "$0")/.." && pwd)
+HOOKS_SRC_DIR="$PROJECT_DIR/scripts/git-hooks"
+HOOKS_DEST_DIR="$PROJECT_DIR/.git/hooks"
+
+echo "========================================="
+echo "Installing Git Hooks"
+echo "========================================="
+echo ""
+
+# Check if .git directory exists
+if [ ! -d "$PROJECT_DIR/.git" ]; then
+    echo "Error: Not a git repository"
+    exit 1
+fi
+
+# Create hooks directory if it doesn't exist
+mkdir -p "$HOOKS_DEST_DIR"
+
+# Install post-merge hook
+if [ -f "$HOOKS_SRC_DIR/post-merge" ]; then
+    echo "Installing post-merge hook..."
+    cp "$HOOKS_SRC_DIR/post-merge" "$HOOKS_DEST_DIR/post-merge"
+    chmod +x "$HOOKS_DEST_DIR/post-merge"
+    echo "✓ post-merge hook installed"
+else
+    echo "✗ post-merge hook not found at $HOOKS_SRC_DIR/post-merge"
+    exit 1
+fi
+
+echo ""
+echo "========================================="
+echo "Git Hooks Installed Successfully!"
+echo "========================================="
+echo ""
+echo "The following hooks are now active:"
+echo "  - post-merge: Auto-rebuild and restart after 'git pull'"
+echo ""
+echo "Hooks will run automatically when you:"
+echo "  - Run 'git pull'"
+echo "  - Run './scripts/auto-update.sh'"
+echo ""