projectChat.ts: STREAM_TIMEOUT_MS const is placed between import statements

[bmersereau]

Problem

In backend/src/routes/projectChat.ts (PR #112 / fix/100), the constant declaration is placed between two blocks of import statements:

import { Router } from "express";
import { requireAuth } from "../middleware/auth";
import { createServerSupabase } from "../lib/supabase";

const STREAM_TIMEOUT_MS = 180_000;   // ← between imports
import {
    buildProjectDocContext,
    ...
} from "../lib/chatTools";

While TypeScript and the ES module spec both treat import declarations as hoisted (so this compiles and runs correctly), mixing const declarations into the import block is non-idiomatic, confuses linters and code formatters, and can cause subtle issues in CommonJS transpilation.

Fix

Move const STREAM_TIMEOUT_MS = 180_000; to after the last import statement.

[bmersereau]

Fixed in PR #112. The const STREAM_TIMEOUT_MS = 180_000 declaration in projectChat.ts has been moved to after all import statements (line 17, before PROJECT_SYSTEM_PROMPT_EXTRA). Closes when PR #112 merges.