fix: release script grep -P macOS compat and CLI typecheck actor errors

- Replace grep -P (Perl regex, unavailable on macOS) with sed for
  extracting the CLI version string in release.sh
- Add triple-slash reference to server/src/types/express.d.ts in
  server/src/index.ts so CLI's tsc picks up the Express Request
  augmentation when following workspace links

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/release.sh

@@ -113,7 +113,7 @@ NEW_VERSION=$(node -e "console.log(require('$CLI_DIR/package.json').version)")
 echo "  New version: $NEW_VERSION"
 
 # Update the version string in cli/src/index.ts
-CURRENT_VERSION_IN_SRC=$(grep -oP '\.version\("\K[^"]+' "$CLI_DIR/src/index.ts" || echo "")
+CURRENT_VERSION_IN_SRC=$(sed -n 's/.*\.version("\([^"]*\)".*/\1/p' "$CLI_DIR/src/index.ts" | head -1)
 if [ -n "$CURRENT_VERSION_IN_SRC" ] && [ "$CURRENT_VERSION_IN_SRC" != "$NEW_VERSION" ]; then
   sed -i '' "s/\.version(\"$CURRENT_VERSION_IN_SRC\")/\.version(\"$NEW_VERSION\")/" "$CLI_DIR/src/index.ts"
   echo "  ✓ Updated cli/src/index.ts version to $NEW_VERSION"

server/src/index.ts

@@ -1,3 +1,4 @@
+/// <reference path="./types/express.d.ts" />
 import { existsSync, readFileSync, rmSync } from "node:fs";
 import { createServer } from "node:http";
 import { resolve } from "node:path";