Added slash command handling

docs/protocol/frames.schema.json

@@ -62,7 +62,8 @@
       "sync.done": { "payload": { "cursor": { "type": "integer" } } },
       "history": { "description": "Paged full message history for a chat/thread (response to a history request). Reconstructed from the outbox log; used to populate the view on first open / after a process death, since sync only replays the outbox delta.", "payload": { "messages": { "type": "array", "items": { "type": "object", "properties": { "message_id": {"type":"string"}, "role": {"type":"string","enum":["user","assistant"]}, "text": {"type":"string"}, "reasoning": {"type":"string"}, "model": {"type":"string"}, "tokens": {"type":"integer"}, "ts": {"type":"integer"}, "media": {"type":"array","items":{"$ref":"#/definitions/media_ref"}} } } }, "has_more": { "type": "boolean", "description": "True when older pages exist." }, "oldest_message_id": { "type": "string", "description": "before_message_id for the next (older) page." } } },
       "media.pull.end": { "payload": { "ok": { "type": "boolean" } } },
-      "media.upload.ack": { "description": "Response to media.upload.end; ref is cached and usable in message.send media_refs.", "payload": { "ok": { "type": "boolean" }, "media_ref": { "type": "string" } } }
+      "media.upload.ack": { "description": "Response to media.upload.end; ref is cached and usable in message.send media_refs.", "payload": { "ok": { "type": "boolean" }, "media_ref": { "type": "string" } } },
+      "commands.catalog": { "description": "Response to a commands.catalog request: the gateway's slash-command catalog for the app's '/' drawer. Derived from hermes' COMMAND_REGISTRY (gateway-available subset) plus plugin-registered commands. The app fuzzy-matches the typed prefix client-side.", "payload": { "commands": { "type": "array", "items": { "type": "object", "properties": { "name": { "type": "string", "description": "Canonical command with leading slash, e.g. \"/new\"." }, "description": { "type": "string" }, "args_hint": { "type": "string", "description": "Argument placeholder, e.g. \"[name]\"; empty when none." }, "category": { "type": "string", "description": "Registry category (Session, Configuration, Tools & Skills, Info, Exit, Plugin)." }, "aliases": { "type": "array", "items": { "type": "string" }, "description": "Alternative names with leading slash, e.g. [\"/reset\"] for /new." } } } } } }
     },
     "app_to_server": {
       "hello": { "description": "First frame; auth + caps.", "payload": { "token": { "type": "string" }, "device_id": { "type": "string" }, "device_name": { "type": "string" }, "caps": { "type": "object", "properties": { "min_protocol": {"type":"integer"}, "media": {"type":"boolean"}, "push": {"type":"string"} } }, "fcm_token": { "type": "string" }, "ntfy_topic": { "type": "string" } } },
@@ -78,6 +79,7 @@
         "channel.set_automation": { "description": "Mark a channel as automation (read-only for the user; it only receives gateway-originated output such as cron jobs and webhooks). The app hides the composer and the gateway rejects message.send into it. The default channel cannot be marked (error not_found). Answered by a channel.renamed carrying the full entry.", "payload": { "on": { "type": "boolean" } } },
         "channel.delete": { "payload": {} },
       "channel.list": { "description": "Request the full channel directory; answered by the server_to_app channel.list frame.", "payload": {} },
+      "commands.catalog": { "description": "Request the gateway's slash-command catalog (the app's '/' drawer); answered by the server_to_app commands.catalog frame carrying the same id.", "payload": {} },
       "search": { "payload": { "query": { "type": "string" }, "scope": { "type": "string", "enum": ["all", "chat"] }, "chat_id": { "type": "string" }, "thread_id": { "type": "string" }, "limit": { "type": "integer", "description": "Optional; server default 20." } } },
       "sync": { "description": "Reconnect catch-up; replays undelivered outbox frames only (not full history).", "payload": { "cursor": { "type": "integer" } } },
       "history": { "description": "Load a page of full message history for a chat/thread (initial open, scroll-up pagination).", "payload": { "before_message_id": { "type": "string", "description": "Return messages older than this (omit for newest page)." }, "limit": { "type": "integer", "description": "Max messages (default 50, max 200)." } } },
@@ -98,9 +100,7 @@
     { "name": "picker.approval", "direction": "server_to_app", "note": "Approval picker prompt. Planned, not implemented (approvals arrive as notification)." },
     { "name": "picker.confirm", "direction": "server_to_app", "note": "Confirmation picker prompt. Planned, not implemented." },
     { "name": "picker.select", "direction": "app_to_server", "note": "Picker answer. Planned, not implemented." },
-    { "name": "commands.catalog", "direction": "server_to_app", "note": "Slash-command catalog. Planned, not implemented." },
-    { "name": "commands.catalog", "direction": "app_to_server", "note": "Slash-command catalog request. Planned, not implemented." },
-    { "name": "commands.complete", "direction": "server_to_app", "note": "Slash-command autocomplete. Planned, not implemented." },
+    { "name": "commands.complete", "direction": "server_to_app", "note": "Slash-command autocomplete. Planned, not implemented (the app fuzzy-matches the commands.catalog list client-side)." },
     { "name": "commands.complete", "direction": "app_to_server", "note": "Slash-command autocomplete request. Planned, not implemented." },
     { "name": "agent.busy", "direction": "server_to_app", "note": "Agent-busy indicator. Planned, not implemented (typing frames cover it)." },
     { "name": "agent.idle", "direction": "server_to_app", "note": "Agent-idle indicator. Planned, not implemented." },