- Pre-allocate browser in handleBrowserStart with chromedp.Run(s.ctx)
to avoid the first-Run timeout killing the browser process
- Replace all per-action context.WithTimeout with s.ctx in navigate,
click, type, screenshot, html, scroll handlers
- Add cleanupLoop goroutine for session-level timeout safety
- This matches chromedp docs warning: first Run with timeout context
stops the entire browser
NapCat file messages have file_id in data["file_id"], not data["file"].
data["file"] is the filename, causing get_file API to return empty.
Also pass url field to downloadFile for URL-direct fallback.
go_invoke_tool does json.Marshal(r) on handler results. When r is a string,
the raw JSON gets wrapped in quotes and escapes, causing the core's
json.Unmarshal into map[string]interface{} to fail (displayed as map[]).
Changed return type to json.RawMessage (implements json.Marshaler, outputs
raw bytes inline). Added rawString() helper for callers that need the
string representation.
- handleChannelOutput: read payload/meta/type instead of content JSON
- Route by type: text/voice/image/file
- buildOutputHelp: show new parameter format
- Remove fixJSON (no longer needed without JSON-within-JSON)
