chore: scaffold tsup, biome, vitest, deps

.gitignore

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+node_modules/
+dist/
+coverage/
+*.tsbuildinfo

biome.json

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+{
+    "$schema": "https://biomejs.dev/schemas/2.0.0/schema.json",
+    "files": {
+        "includes": ["src/**", "test/**"]
+    },
+    "formatter": {
+        "enabled": true,
+        "indentStyle": "space",
+        "indentWidth": 4,
+        "lineWidth": 100
+    },
+    "javascript": {
+        "formatter": {
+            "quoteStyle": "single",
+            "semicolons": "asNeeded",
+            "trailingCommas": "none"
+        }
+    },
+    "linter": {
+        "enabled": true,
+        "rules": {
+            "recommended": true
+        }
+    }
+}

package.json

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+{
+    "name": "dbmole-mcp",
+    "version": "0.1.0",
+    "description": "MCP server for PostgreSQL and MySQL with named connections and SSH tunnels",
+    "license": "MIT",
+    "type": "module",
+    "bin": {
+        "dbmole-mcp": "dist/index.js"
+    },
+    "files": [
+        "dist"
+    ],
+    "engines": {
+        "node": ">=20"
+    },
+    "scripts": {
+        "build": "tsup",
+        "dev": "tsx src/index.ts",
+        "lint": "biome check src test",
+        "lint:fix": "biome check --write src test",
+        "typecheck": "tsc --noEmit",
+        "test": "vitest run --project unit",
+        "test:unit": "vitest run --project unit",
+        "test:int": "vitest run --project integration",
+        "test:all": "vitest run",
+        "coverage": "vitest run --project unit --coverage"
+    },
+    "dependencies": {
+        "@modelcontextprotocol/sdk": "^1.29.0",
+        "mysql2": "^3.22.5",
+        "pg": "^8.21.0",
+        "ssh2": "^1.17.0",
+        "zod": "^3.25.76"
+    },
+    "devDependencies": {
+        "@biomejs/biome": "^2.4.16",
+        "@testcontainers/mysql": "^11.14.0",
+        "@testcontainers/postgresql": "^11.14.0",
+        "@types/node": "^22.19.21",
+        "@types/pg": "^8.20.0",
+        "@types/ssh2": "^1.15.5",
+        "@vitest/coverage-v8": "^3.2.6",
+        "testcontainers": "^11.14.0",
+        "tsup": "^8.5.1",
+        "tsx": "^4.22.4",
+        "typescript": "^5.9.3",
+        "vitest": "^3.2.6"
+    }
+}

src/index.ts

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+export const placeholder = true

test/unit/smoke.test.ts

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+import { describe, expect, it } from 'vitest'
+
+describe('smoke', () => {
+    it('runs', () => {
+        expect(1 + 1).toBe(2)
+    })
+})

tsconfig.json

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+{
+    "compilerOptions": {
+        "target": "ES2022",
+        "module": "NodeNext",
+        "moduleResolution": "NodeNext",
+        "strict": true,
+        "skipLibCheck": true,
+        "esModuleInterop": true,
+        "forceConsistentCasingInFileNames": true,
+        "noEmit": true,
+        "types": ["node"]
+    },
+    "include": ["src", "test"]
+}

tsup.config.ts

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+import { defineConfig } from 'tsup'
+
+export default defineConfig({
+    entry: ['src/index.ts'],
+    format: 'esm',
+    target: 'node20',
+    clean: true,
+    banner: {
+        js: '#!/usr/bin/env node'
+    }
+})

vitest.config.ts

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+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+    test: {
+        projects: [
+            {
+                test: {
+                    name: 'unit',
+                    include: ['test/unit/**/*.test.ts']
+                }
+            },
+            {
+                test: {
+                    name: 'integration',
+                    include: ['test/integration/**/*.test.ts'],
+                    testTimeout: 120_000,
+                    hookTimeout: 240_000
+                }
+            }
+        ],
+        coverage: {
+            provider: 'v8',
+            include: ['src/**'],
+            exclude: ['src/index.ts'],
+            thresholds: {
+                lines: 90,
+                functions: 90
+            }
+        }
+    }
+})