9ef390c09b
- Added inline hint support for slash commands with getInlineHint() method on SlashCommand and AutocompleteProvider interfaces. - Added SubcommandDef interface for declarative subcommand definitions with name, description, and usage properties. - Added subcommands and inlineHint properties to BuiltinSlashCommand interface for enhanced command configuration. - Added getArgumentCompletions and getInlineHint functions to materialized slash commands for browser and mcp subcommand completion. - Converted browser command to support subcommands (headless, visible) with inline hints. - Converted mcp command to support 10 subcommands (add, list, remove, test, reauth, unauth, enable, disable, reload, help) with descriptions and usage hints.