refactor(honcho): write all host-scoped settings into hosts block

Setup wizard now writes memoryMode, writeFrequency, recallMode, and
sessionStrategy into hosts.hermes instead of the config root. Client
resolution updated to read sessionStrategy and sessionPeerPrefix from
host block first. Docs updated to show hosts-based config as the default
example so other integrations can coexist cleanly.

website/docs/user-guide/features/honcho.md

@@ -37,16 +37,16 @@ The setup wizard walks through API key, peer names, workspace, memory mode, writ
 
 ### Manual Setup
 
-#### 1. Install the Client Library
+#### 1. Get an API Key
+
+Go to [app.honcho.dev](https://app.honcho.dev) > Settings > API Keys.
+
+#### 2. Install the Client Library
 
 ```bash
 pip install 'honcho-ai>=2.0.1'
 ```
 
-#### 2. Get an API Key
-
-Go to [app.honcho.dev](https://app.honcho.dev) > Settings > API Keys.
-
 #### 3. Configure
 
 Honcho reads from `~/.honcho/config.json` (shared across all Honcho-enabled applications):
@@ -54,17 +54,23 @@ Honcho reads from `~/.honcho/config.json` (shared across all Honcho-enabled appl
 ```json
 {
   "apiKey": "your-honcho-api-key",
-  "workspace": "hermes",
   "peerName": "your-name",
-  "aiPeer": "hermes",
-  "memoryMode": "hybrid",
-  "writeFrequency": "async",
-  "recallMode": "hybrid",
-  "sessionStrategy": "per-directory",
-  "enabled": true
+  "enabled": true,
+  "hosts": {
+    "hermes": {
+      "workspace": "hermes",
+      "aiPeer": "hermes",
+      "memoryMode": "hybrid",
+      "writeFrequency": "async",
+      "recallMode": "hybrid",
+      "sessionStrategy": "per-directory"
+    }
+  }
 }
 ```
 
+The `hosts` structure lets multiple integrations share the same config file. Each host (Hermes, Claude Code, Cursor, etc.) reads its own block while sharing global fields like `apiKey` and `peerName`.
+
 Or set the API key as an environment variable:
 
 ```bash