feat(trigger): add session-bound local triggers

nanobot/command/builtin.py

@@ -81,6 +81,13 @@ BUILTIN_COMMAND_SPECS: tuple[BuiltinCommandSpec, ...] = (
         "activity",
         "<goal>",
     ),
+    BuiltinCommandSpec(
+        "/trigger",
+        "Create local trigger",
+        "Create a CLI trigger bound to this chat session.",
+        "zap",
+        "[name]",
+    ),
     BuiltinCommandSpec(
         "/dream",
         "Run Dream",
@@ -718,6 +725,43 @@ async def cmd_skill(ctx: CommandContext) -> OutboundMessage:
         metadata=dict(ctx.msg.metadata or {}),
     )
 
+
+async def cmd_trigger(ctx: CommandContext) -> OutboundMessage:
+    """Create a local trigger bound to the current session."""
+    from nanobot.triggers.store import ExternalTriggerStore
+
+    loop = ctx.loop
+    workspace = getattr(loop, "workspace", None)
+    if workspace is None:
+        workspace = getattr(getattr(loop, "context", None), "workspace", None)
+    if workspace is None:
+        raise RuntimeError("workspace unavailable for trigger creation")
+
+    store = getattr(loop, "external_trigger_store", None)
+    if store is None:
+        store = ExternalTriggerStore(workspace)
+
+    name = ctx.args.strip() or "External trigger"
+    trigger = store.create(
+        name=name,
+        channel=ctx.msg.channel,
+        chat_id=ctx.msg.chat_id,
+        session_key=ctx.key,
+        sender_id="trigger",
+        origin_metadata=dict(ctx.msg.metadata or {}),
+    )
+    command = f'nanobot trigger {trigger.id} "message"'
+    return OutboundMessage(
+        channel=ctx.msg.channel,
+        chat_id=ctx.msg.chat_id,
+        content=(
+            f"Trigger created: {trigger.name}\n"
+            f"ID: {trigger.id}\n\n"
+            f"Command:\n{command}"
+        ),
+        metadata={**dict(ctx.msg.metadata or {}), "render_as": "text"},
+    )
+
 async def cmd_help(ctx: CommandContext) -> OutboundMessage:
     """Return available slash commands."""
     return OutboundMessage(
@@ -752,6 +796,8 @@ def register_builtin_commands(router: CommandRouter) -> None:
     router.prefix("/history ", cmd_history)
     router.exact("/goal", cmd_goal)
     router.prefix("/goal ", cmd_goal)
+    router.exact("/trigger", cmd_trigger)
+    router.prefix("/trigger ", cmd_trigger)
     router.exact("/dream", cmd_dream)
     router.exact("/dream-log", cmd_dream_log)
     router.prefix("/dream-log ", cmd_dream_log)