feat(server): improve context management (#15448)

#### PR Dependency Tree


* **PR #15448** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Added workspace artifact upload, browsing, removal, deduplication, and
library ownership support.
* Copilot now supports scoped document and artifact search, canvas
reading, live editor context, and frontend tools.
* Added scope and focus selectors with source-resolution receipts in
chat.
* Added embedding health, progress, synchronization, and retrieval
capabilities.
* Added BYOK policy visibility, provider restrictions, endpoint dialect
selection, and validation.
* Added delegated editor interactions and userdata document
authorization.

* **Bug Fixes**
* Improved attachment handling, cancellation, access control, retrieval
fallbacks, workspace synchronization, and configuration validation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tests/affine-cloud-copilot/playwright.config.ts

@@ -1,9 +1,15 @@
+import { fileURLToPath } from 'node:url';
+
 import { testResultDir } from '@affine-test/kit/playwright';
 import type {
   PlaywrightTestConfig,
   PlaywrightWorkerOptions,
 } from '@playwright/test';
 
+const runtimeConfigPath = fileURLToPath(
+  new URL('./runtime-config.json', import.meta.url)
+);
+
 const config: PlaywrightTestConfig = {
   testDir: './e2e',
   fullyParallel: true,
@@ -50,6 +56,7 @@ const config: PlaywrightTestConfig = {
           'postgresql://affine:affine@localhost:5432/affine',
         NODE_ENV: 'test',
         AFFINE_ENV: process.env.AFFINE_ENV ?? 'dev',
+        AFFINE_BACKEND_RUNTIME_CONFIG_PATH: runtimeConfigPath,
         DEBUG: 'affine:*',
         FORCE_COLOR: 'true',
         DEBUG_COLORS: 'true',