feat(esm): Complete P1.T005 - Migrate core commands to ESM JavaScript

✅ Successfully migrated 13 core files (~800 LoC) from CommonJS to ESM:
- src/index.js - Main CLI entry with dynamic imports
- src/lib/Command.js - Base command class
- src/lib/DatabaseCommand.js - Database base class
- src/lib/SupabaseCommand.js - Supabase base class
- src/lib/TestCommand.js - Test base class
- src/commands/db/CompileCommand.js - Compilation command
- src/commands/db/MigrateCommand.js - Migration command
- src/commands/test/RunCommand.js - Test execution command
- src/reporters/CliReporter.js - CLI reporter
- src/ui/logo.js - Logo utility
- Command index files for db, test, functions

Migration patterns established:
- require() → import statements
- module.exports → export default/named exports
- Added .js extensions to relative imports
- Dynamic imports for runtime loading
- import.meta.url for module detection

CLI fully functional with ESM modules!

Next: P1.T009 and P1.T010 can run in parallel

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

Co-Authored-By: Claude <[email protected]>

Author: flyingrobots

src/commands/db/CompileCommand.js

@@ -2,8 +2,8 @@
  * Database Migration Compile Command
  */
 
-const path = require('path');
-const BuildCommand = require('../../lib/BuildCommand');
+import { join } from 'path';
+import BuildCommand from '../../lib/BuildCommand.js';
 
 /**
  * Compile SQL sources into migration file
@@ -39,7 +39,7 @@ class CompileCommand extends BuildCommand {
       }
 
       // Load the native migration compiler
-      const MigrationCompiler = require('../../lib/migration/MigrationCompiler');
+      const { default: MigrationCompiler } = await import('../../lib/migration/MigrationCompiler.js');
 
       // Create compiler instance
       const compiler = new MigrationCompiler({
@@ -80,12 +80,12 @@ class CompileCommand extends BuildCommand {
 
     try {
       // Import the DeployCommand
-      const { DeployCommand } = require('../functions');
+      const { DeployCommand } = await import('../functions/index.js');
 
       // Create a functions deployment command
       // Note: This will need to be refactored when functions are separated
       const deployCommand = new DeployCommand(
-        path.join(this.inputDir, '../functions'),
+        join(this.inputDir, '../functions'),
         this.logger,
         this.isProd
       );
@@ -158,4 +158,5 @@ class CompileCommand extends BuildCommand {
   }
 }
 
-module.exports = CompileCommand;
+export { CompileCommand };
+export default CompileCommand;

src/commands/db/MigrateCommand.js

@@ -2,9 +2,9 @@
  * Database Migration Management Command
  */
 
-const Command = require('../../lib/Command');
-const CommandRouter = require('../../lib/CommandRouter');
-const { z } = require('zod');
+import Command from '../../lib/Command.js';
+import CommandRouter from '../../lib/CommandRouter.js';
+import { z } from 'zod';
 
 /**
  * Migration command that uses router pattern for subcommands
@@ -56,7 +56,10 @@ class MigrateCommand extends Command {
         'data db migrate generate --name add-users-table',
         'data db migrate generate --dry-run'
       )
-      .handler(require('./migrate/generate'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/generate.js');
+        return handler(...args);
+      });
 
     // Register test command  
     router
@@ -74,7 +77,10 @@ class MigrateCommand extends Command {
         'data db migrate test --migration latest',
         'data db migrate test --migration 20250829_001 --coverage'
       )
-      .handler(require('./migrate/test-v2'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/test-v2.js');
+        return handler(...args);
+      });
 
     // Register promote command
     router
@@ -91,7 +97,10 @@ class MigrateCommand extends Command {
         'data db migrate promote --migration 20250829_001',
         'data db migrate promote --prod --force'
       )
-      .handler(require('./migrate/promote'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/promote.js');
+        return handler(...args);
+      });
 
     // Register status command
     router
@@ -108,7 +117,10 @@ class MigrateCommand extends Command {
         'data db migrate status --detailed',
         'data db migrate status --prod --format json'
       )
-      .handler(require('./migrate/status'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/status.js');
+        return handler(...args);
+      });
 
     // Register rollback command
     router
@@ -127,7 +139,10 @@ class MigrateCommand extends Command {
         'data db migrate rollback --to 20250828_003',
         'data db migrate rollback --prod --force'
       )
-      .handler(require('./migrate/rollback'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/rollback.js');
+        return handler(...args);
+      });
 
     // Register clean command
     router
@@ -145,7 +160,10 @@ class MigrateCommand extends Command {
         'data db migrate clean --all',
         'data db migrate clean --older 30 --dry-run'
       )
-      .handler(require('./migrate/clean'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/clean.js');
+        return handler(...args);
+      });
 
     // Register history command
     router
@@ -164,7 +182,10 @@ class MigrateCommand extends Command {
         'data db migrate history --limit 20',
         'data db migrate history --from 2025-01-01 --format timeline'
       )
-      .handler(require('./migrate/history'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/history.js');
+        return handler(...args);
+      });
 
     // Register verify command
     router
@@ -182,7 +203,10 @@ class MigrateCommand extends Command {
         'data db migrate verify --migration 20250829_001',
         'data db migrate verify --all --prod'
       )
-      .handler(require('./migrate/verify'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/verify.js');
+        return handler(...args);
+      });
 
     // Register squash command
     router
@@ -201,7 +225,10 @@ class MigrateCommand extends Command {
         'data db migrate squash --name initial-schema',
         'data db migrate squash --dry-run'
       )
-      .handler(require('./migrate/squash'));
+      .handler(async (...args) => {
+        const { default: handler } = await import('./migrate/squash.js');
+        return handler(...args);
+      });
 
     return router;
   }
@@ -295,4 +322,5 @@ class MigrateCommand extends Command {
   }
 }
 
-module.exports = MigrateCommand;
+export { MigrateCommand };
+export default MigrateCommand;

src/commands/db/index.js

@@ -2,12 +2,12 @@
  * Database Commands for data CLI
  */
 
-const ResetCommand = require('./ResetCommand');
-const QueryCommand = require('./QueryCommand');
-const CompileCommand = require('./CompileCommand');
-const MigrateCommand = require('./MigrateCommand');
+import ResetCommand from './ResetCommand.js';
+import QueryCommand from './QueryCommand.js';
+import CompileCommand from './CompileCommand.js';
+import MigrateCommand from './MigrateCommand.js';
 
-module.exports = {
+export {
   ResetCommand,
   QueryCommand,
   CompileCommand,

src/commands/functions/index.js

@@ -2,11 +2,11 @@
  * Functions Commands Index
  */
 
-const DeployCommand = require('./DeployCommand');
-const ValidateCommand = require('./ValidateCommand');
-const StatusCommand = require('./StatusCommand');
+import DeployCommand from './DeployCommand.js';
+import ValidateCommand from './ValidateCommand.js';
+import StatusCommand from './StatusCommand.js';
 
-module.exports = {
+export {
   DeployCommand,
   ValidateCommand,
   StatusCommand

src/commands/test/RunCommand.js

@@ -2,15 +2,15 @@
  * Test Run Command
  */
 
-const { Client } = require('pg');
-const chalk = require('chalk').default || require('chalk');
-const fs = require('fs').promises;
-const path = require('path');
-const TestCommand = require('../../lib/TestCommand');
-const ResultParser = require('../../lib/test/ResultParser');
-const { JUnitFormatter, JSONFormatter } = require('../../lib/test/formatters');
-const TestCache = require('../../lib/test/TestCache');
-const Config = require('../../lib/config');
+import { Client } from 'pg';
+import chalk from 'chalk';
+import { promises as fs } from 'fs';
+import { extname, dirname, join } from 'path';
+import TestCommand from '../../lib/TestCommand.js';
+import ResultParser from '../../lib/test/ResultParser.js';
+import { JUnitFormatter, JSONFormatter } from '../../lib/test/formatters/index.js';
+import TestCache from '../../lib/test/TestCache.js';
+import Config from '../../lib/config.js';
 
 /**
  * Run compiled tests using pgTAP
@@ -527,12 +527,12 @@ class RunCommand extends TestCommand {
     let fullPath = filePath;
 
     // Add default extension if not present
-    if (!path.extname(filePath)) {
+    if (!extname(filePath)) {
       fullPath = filePath + defaultExtension;
     }
 
     // Ensure directory exists
-    const dir = path.dirname(fullPath);
+    const dir = dirname(fullPath);
     await fs.mkdir(dir, { recursive: true });
 
     // Write file
@@ -663,4 +663,5 @@ class RunCommand extends TestCommand {
   }
 }
 
-module.exports = RunCommand;
+export { RunCommand };
+export default RunCommand;

src/commands/test/index.js

@@ -2,22 +2,22 @@
  * Test Commands for data CLI
  */
 
-const CompileCommand = require('./CompileCommand');
-const RunCommand = require('./RunCommand');
-const DevCycleCommand = require('./DevCycleCommand');
-const CoverageCommand = require('./CoverageCommand');
-const WatchCommand = require('./WatchCommand');
-const ValidateCommand = require('./ValidateCommand');
-const GenerateCommand = require('./GenerateCommand');
-const GenerateTemplateCommand = require('./GenerateTemplateCommand');
-const CacheCommand = require('./CacheCommand');
+import CompileCommand from './CompileCommand.js';
+import RunCommand from './RunCommand.js';
+import DevCycleCommand from './DevCycleCommand.js';
+import CoverageCommand from './CoverageCommand.js';
+import WatchCommand from './WatchCommand.js';
+import ValidateCommand from './ValidateCommand.js';
+import GenerateCommand from './GenerateCommand.js';
+import GenerateTemplateCommand from './GenerateTemplateCommand.js';
+import CacheCommand from './CacheCommand.js';
 
 // CI Commands for automated testing
-const CIValidateCommand = require('./ci/CIValidateCommand');
-const CIRunCommand = require('./ci/CIRunCommand');
-const CICoverageCommand = require('./ci/CICoverageCommand');
+import CIValidateCommand from './ci/CIValidateCommand.js';
+import CIRunCommand from './ci/CIRunCommand.js';
+import CICoverageCommand from './ci/CICoverageCommand.js';
 
-module.exports = {
+export {
   CompileCommand,
   RunCommand,
   DevCycleCommand,