Initial monorepo setup with npm workspaces and dual TypeScript configuration

- Set up npm workspaces for three packages: pi-tui, pi-agent, and pi (pods)
- Implemented dual TypeScript configuration:
  - Root tsconfig.json with path mappings for development and type checking
  - Package-specific tsconfig.build.json for clean production builds
- Configured lockstep versioning with sync script for inter-package dependencies
- Added comprehensive documentation for development and publishing workflows
- All packages at version 0.5.0 ready for npm publishing

packages/pods/src/config.ts

@@ -0,0 +1,80 @@
+import { existsSync, mkdirSync, readFileSync, writeFileSync } from "fs";
+import { homedir } from "os";
+import { join } from "path";
+import type { Config, Pod } from "./types.js";
+
+// Get config directory from env or use default
+const getConfigDir = (): string => {
+	const configDir = process.env.PI_CONFIG_DIR || join(homedir(), ".pi");
+	if (!existsSync(configDir)) {
+		mkdirSync(configDir, { recursive: true });
+	}
+	return configDir;
+};
+
+const getConfigPath = (): string => {
+	return join(getConfigDir(), "pods.json");
+};
+
+export const loadConfig = (): Config => {
+	const configPath = getConfigPath();
+	if (!existsSync(configPath)) {
+		// Return empty config if file doesn't exist
+		return { pods: {} };
+	}
+	try {
+		const data = readFileSync(configPath, "utf-8");
+		return JSON.parse(data);
+	} catch (e) {
+		console.error(`Error reading config: ${e}`);
+		return { pods: {} };
+	}
+};
+
+export const saveConfig = (config: Config): void => {
+	const configPath = getConfigPath();
+	try {
+		writeFileSync(configPath, JSON.stringify(config, null, 2));
+	} catch (e) {
+		console.error(`Error saving config: ${e}`);
+		process.exit(1);
+	}
+};
+
+export const getActivePod = (): { name: string; pod: Pod } | null => {
+	const config = loadConfig();
+	if (!config.active || !config.pods[config.active]) {
+		return null;
+	}
+	return { name: config.active, pod: config.pods[config.active] };
+};
+
+export const addPod = (name: string, pod: Pod): void => {
+	const config = loadConfig();
+	config.pods[name] = pod;
+	// If no active pod, make this one active
+	if (!config.active) {
+		config.active = name;
+	}
+	saveConfig(config);
+};
+
+export const removePod = (name: string): void => {
+	const config = loadConfig();
+	delete config.pods[name];
+	// If this was the active pod, clear active
+	if (config.active === name) {
+		config.active = undefined;
+	}
+	saveConfig(config);
+};
+
+export const setActivePod = (name: string): void => {
+	const config = loadConfig();
+	if (!config.pods[name]) {
+		console.error(`Pod '${name}' not found`);
+		process.exit(1);
+	}
+	config.active = name;
+	saveConfig(config);
+};