refactor(cli): split tjwater cli modules

cli/src/handlers.ts

@@ -0,0 +1,15 @@
+import { analysisHandlers } from "./commands/analysis.js";
+import { componentHandlers } from "./commands/component.js";
+import { dataHandlers } from "./commands/data.js";
+import { networkHandlers } from "./commands/network.js";
+import { simulationHandlers } from "./commands/simulation.js";
+import type { HandlerMap } from "./core/types.js";
+
+export const handlers: HandlerMap = {
+  "__noop": async () => {},
+  ...networkHandlers,
+  ...componentHandlers,
+  ...simulationHandlers,
+  ...analysisHandlers,
+  ...dataHandlers,
+};