Configure Biome import organiser with grouped imports (#8431)

Enable Biome's `organizeImports` with groups matching the original
ESLint `import/order` configuration:

1. **Node builtins** (`node:fs`, `path`, etc.)
2. *(blank line)*
3. **Third-party packages** (`express`, `@sentry/node`, etc.)
4. *(blank line)*
5. **Local/relative imports** (`../foo.js`, `./bar.js`, aliases)

This resolves the inconsistency where Biome wasn't enforcing import
grouping, meaning new files would lose the blank-line separation that
the old ESLint config enforced.

### Impact
- **354 files** updated out of 738 checked (~48%)
- **+188 / -240 lines** (net -52) — almost entirely single blank line
additions/removals between import groups
- No import reordering; purely group separator consistency

Fixes #7373

🤖 Generated by LLM (Claude, via OpenClaw)

lib/execution/sqs-execution-queue.ts

@@ -30,7 +30,6 @@ import {CompilationEnvironment} from '../compilation-env.js';
 import {logger} from '../logger.js';
 import {PropertyGetter} from '../properties.interfaces.js';
 import {getHash} from '../utils.js';
-
 import {LocalExecutionEnvironment} from './_all.js';
 import {BaseExecutionTriple} from './base-execution-triple.js';
 import {PersistentEventsSender} from './events-websocket.js';