Merge origin/main into dev (second round)

Resolve 21 conflicts from latest main (provider profiles, Windows fixes, 0.1.55-rc.1).
Fix all type errors and syntax issues from merge artifacts.

packages/server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@getpaseo/server",
-  "version": "0.1.54",
+  "version": "0.1.55-rc.1",
   "description": "Paseo backend server",
   "type": "module",
   "publishConfig": {
@@ -61,8 +61,8 @@
     "@ai-sdk/openai": "2.0.52",
     "@anthropic-ai/claude-agent-sdk": "^0.2.11",
     "@deepgram/sdk": "^3.4.0",
-    "@getpaseo/highlight": "0.1.54",
-    "@getpaseo/relay": "0.1.54",
+    "@getpaseo/highlight": "0.1.55-rc.1",
+    "@getpaseo/relay": "0.1.55-rc.1",
     "@isaacs/ttlcache": "^2.1.4",
     "@modelcontextprotocol/sdk": "^1.20.1",
     "@opencode-ai/sdk": "1.2.6",
@@ -81,6 +81,7 @@
     "node-pty": "1.2.0-beta.11",
     "onnxruntime-node": "^1.23.0",
     "openai": "^4.20.0",
+    "p-limit": "^7.3.0",
     "pi-acp": "^0.0.24",
     "pino": "^10.2.0",
     "pino-pretty": "^13.1.3",