feat(coding-agent): ResourceLoader, package management, and /reload command (#645)

- Add ResourceLoader interface and DefaultResourceLoader implementation
- Add PackageManager for npm/git extension sources with install/remove/update
- Add session.reload() and session.bindExtensions() APIs
- Add /reload command in interactive mode
- Add CLI flags: --skill, --theme, --prompt-template, --no-themes, --no-prompt-templates
- Add pi install/remove/update commands for extension management
- Refactor settings.json to use arrays for skills, prompts, themes
- Remove legacy SkillsSettings source flags and filters
- Update SDK examples and documentation for ResourceLoader pattern
- Add theme registration and loadThemeFromPath for dynamic themes
- Add getShellEnv to include bin dir in PATH for bash commands

packages/coding-agent/src/core/bash-executor.ts

@@ -12,7 +12,7 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { type ChildProcess, spawn } from "child_process";
 import stripAnsi from "strip-ansi";
-import { getShellConfig, killProcessTree, sanitizeBinaryOutput } from "../utils/shell.js";
+import { getShellConfig, getShellEnv, killProcessTree, sanitizeBinaryOutput } from "../utils/shell.js";
 import type { BashOperations } from "./tools/bash.js";
 import { DEFAULT_MAX_BYTES, truncateTail } from "./tools/truncate.js";
 
@@ -63,6 +63,7 @@ export function executeBash(command: string, options?: BashExecutorOptions): Pro
 		const { shell, args } = getShellConfig();
 		const child: ChildProcess = spawn(shell, [...args, command], {
 			detached: true,
+			env: getShellEnv(),
 			stdio: ["ignore", "pipe", "pipe"],
 		});