Add Dockerfile with DATABASE_URL support for Fly deployment

.dockerignore

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+node_modules
+
+# Output
+.output
+.vercel
+.netlify
+.wrangler
+/.svelte-kit
+/build
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Essential Development Commands
+
+```bash
+# Development
+npm run dev                    # Start development server
+npm run build                  # Build for production  
+npm run start                  # Start production server
+npm run preview                # Preview production build
+
+# Code Quality
+npm run check                  # TypeScript type checking
+npm run check:watch            # TypeScript type checking in watch mode
+npm run lint                   # Run ESLint and Prettier checks
+npm run format                 # Format code with Prettier
+
+# Database Setup
+npm run db:setup                       # Initialize database schema (requires DATABASE_URL env var)
+psql -d database_name -f schema.sql    # Alternative: direct psql command
+```
+
+## Architecture Overview
+
+This is a SvelteKit + PostgreSQL guestbook application with the following key architectural patterns:
+
+### Database Layer (`src/lib/database.ts`)
+- Uses `pg` PostgreSQL client with connection pooling
+- `MessageService` class provides data access methods
+- Type-safe interfaces: `GuestbookMessage` and `MessageInsert`
+- SSL configuration for production environments
+
+### Server-Side Logic (`src/routes/+page.server.ts`)
+- Load function fetches messages with error handling
+- Form actions handle message creation with validation
+- Input sanitization and length limits (name: 100 chars, message: 500 chars)
+
+### Component Structure
+- Reusable UI components in `src/lib/components/`
+- `MessageCard.svelte` - displays individual guestbook entries
+- `MessageForm.svelte` - form for creating new entries
+- `Header.svelte`, `Navigation.svelte` - layout components
+
+### Database Schema
+- Single table: `guestbook_messages`
+- Required fields: `name`, `message`
+- Optional fields: `email`, `location`, `website`
+- Indexed on `created_at` for performance
+
+## Environment Configuration
+
+Required environment variable:
+- `DATABASE_URL` - PostgreSQL connection string
+
+The application automatically configures SSL for production environments and includes proper connection pooling.
+
+## Package Management
+The project has merge conflict markers in package.json. Resolve these before development:
+- Uses npm as the package manager (despite README mentioning bun)
+- Node.js adapter configured for deployment
+- Tailwind CSS v4 for styling
+- TypeScript with strict mode enabled

Dockerfile

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+# syntax = docker/dockerfile:1
+
+# Adjust BUN_VERSION as desired
+ARG BUN_VERSION=1.2.19
+FROM oven/bun:${BUN_VERSION}-slim AS base
+
+# Base arguments 
+ARG DATABASE_URL="dummy"
+
+LABEL fly_launch_runtime="SvelteKit"
+
+# SvelteKit app lives here
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV="production"
+
+
+# Throw-away build stage to reduce size of final image
+FROM base AS build
+
+# Install packages needed to build node modules
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential pkg-config python-is-python3
+
+# Install node modules
+COPY .npmrc bun.lockb package.json ./
+RUN bun install
+
+# Copy application code
+COPY . .
+
+# Build application
+RUN bun --bun run build
+
+# Remove development dependencies
+RUN rm -rf node_modules && \
+    bun install --ci
+
+
+# Final stage for app image
+FROM base
+
+# Copy built application
+COPY --from=build /app/build /app/build
+COPY --from=build /app/node_modules /app/node_modules
+COPY --from=build /app/package.json /app
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+ENV DATABASE_URL="dummy"
+CMD [ "bun", "run", "start" ]

mise.toml

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+[tools]
+node = "24.6.0"

package.json

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 {
-	"name": "sveltekit-sample",
-	"private": true,
-	"version": "0.0.1",
-	"type": "module",
-	"scripts": {
-		"dev": "vite dev",
-		"build": "vite build",
-		"start": "node build",
-		"preview": "vite preview",
-		"prepare": "svelte-kit sync || echo ''",
-		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
-		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
-		"format": "prettier --write .",
-		"lint": "prettier --check . && eslint ."
-	},
-	"devDependencies": {
-		"@types/pg": "^8.11.10",
-		"@eslint/compat": "^1.2.5",
-		"@eslint/js": "^9.18.0",
-		"@sveltejs/adapter-node": "^5.2.12",
-		"@sveltejs/kit": "^2.22.0",
-		"@sveltejs/vite-plugin-svelte": "^6.0.0",
-		"@tailwindcss/forms": "^0.5.9",
-		"@tailwindcss/typography": "^0.5.15",
-		"@tailwindcss/vite": "^4.0.0",
-		"eslint": "^9.18.0",
-		"eslint-config-prettier": "^10.0.1",
-		"eslint-plugin-svelte": "^3.0.0",
-		"globals": "^16.0.0",
-		"prettier": "^3.4.2",
-		"prettier-plugin-svelte": "^3.3.3",
-		"svelte": "^5.0.0",
-		"svelte-check": "^4.0.0",
-		"tailwindcss": "^4.0.0",
-		"typescript": "^5.0.0",
-		"typescript-eslint": "^8.20.0",
-		"vite": "^7.0.4"
-	},
-	"dependencies": {
-		"pg": "^8.12.0"
-	}
-}
+  "name": "sveltekit-sample",
+  "private": true,
+  "version": "0.0.1",
+  "type": "module",
+  "scripts": {
+    "dev": "vite dev",
+    "build": "vite build",
+    "start": "node build",
+    "preview": "vite preview",
+    "prepare": "svelte-kit sync || echo ''",
+    "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+    "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+    "format": "prettier --write .",
+    "lint": "prettier --check . && eslint .",
+    "db:setup": "psql $DATABASE_URL -f schema.sql"
+  },
+  "devDependencies": {
+    "@types/pg": "^8.11.10",
+    "@eslint/compat": "^1.2.5",
+    "@eslint/js": "^9.18.0",
+    "@sveltejs/adapter-node": "^5.3.1",
+    "@sveltejs/kit": "^2.22.0",
+    "@sveltejs/vite-plugin-svelte": "^6.0.0",
+    "@tailwindcss/forms": "^0.5.9",
+    "@tailwindcss/typography": "^0.5.15",
+    "@tailwindcss/vite": "^4.0.0",
+    "eslint": "^9.18.0",
+    "eslint-config-prettier": "^10.0.1",
+    "eslint-plugin-svelte": "^3.0.0",
+    "globals": "^16.0.0",
+    "prettier": "^3.4.2",
+    "prettier-plugin-svelte": "^3.3.3",
+    "svelte": "^5.0.0",
+    "svelte-check": "^4.0.0",
+    "tailwindcss": "^4.0.0",
+    "typescript": "^5.0.0",
+    "typescript-eslint": "^8.20.0",
+    "vite": "^7.0.4"
+  },
+  "dependencies": {
+    "pg": "^8.12.0"
+  },
+  "dockerfile": {
+    "envs": {
+      "deploy": {
+        "DATABASE_URL": "dummy"
+      }
+    },
+    "args": {
+      "base": {}
+    }
+  }
+}