Prints a flat, one-line-per-handler listing of all routes in an
ExGram.Router bot module. Unlike the tree view, every entry is a leaf
with its full accumulated filter chain (parent scope filters are prepended).
Usage
mix ex_gram.router.flat MyApp.BotExample output
MyApp.Bot handlers:
MyHandlers start/1 filters: [Command(:start)]
Handlers got_name/2 filters: [State(:registration), Text, State(:get_name)]
Handlers got_email/1 filters: [State(:registration), Text, State(:get_email)]
Handlers fallback/1 filters: []The module must use ExGram.Router - it must export __exgram_routing_tree__/0.