chore: cli subscription command registration + env and deploy docs

- inkreach-cli: subscription command in bin, built dist
- env.development: public origin, plugin service registry, cache
  provider=redis, cold retention days
- skill docs: subscription quick reference, deploy and ops notes

src/bin.ts

@@ -11,6 +11,7 @@ import { authCommand } from './commands/auth';
 import { workflowCommand, triggerCommand, actionCommand } from './commands/workflow';
 import { baseResourceCommands } from './commands/resources';
 import { secretCommand, runsCommand, fireCommand, sqlCommand } from './commands/extras';
+import { subscriptionCommand } from './commands/subscription';
 
 const program = new Command();
 
@@ -37,6 +38,7 @@ for (const c of baseResourceCommands()) program.addCommand(c);
 program.addCommand(workflowCommand());
 program.addCommand(triggerCommand());
 program.addCommand(actionCommand());
+program.addCommand(subscriptionCommand());
 program.addCommand(secretCommand());
 program.addCommand(runsCommand());
 program.addCommand(fireCommand());