Migrate to per-agent subdirectories, uniform 8-agent support, cross-platform fixes

- All paths use ~/.elydora/{agentId}/ per-agent isolation
- Add copilot, letta plugins; split kiro into kirocli + kiroide
- Remove augment (SDK-only agent, not one-click)
- Fix chmod to skip on Windows (platform check)
- Fix uninstall to filter by specific agentId
- Uniform 8 agents: claudecode, cursor, gemini, kirocli, kiroide, opencode, copilot, letta
- Update README agent table

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/plugins/copilot.ts

@@ -0,0 +1,164 @@
+import fsp from 'node:fs/promises';
+import path from 'node:path';
+import type { AgentPlugin, InstallConfig, PluginStatus } from './base.js';
+import { SUPPORTED_AGENTS } from './registry.js';
+
+const AGENT_KEY = 'copilot';
+const entry = SUPPORTED_AGENTS.get(AGENT_KEY)!;
+
+function resolveConfigDir(): string {
+  return path.join(process.cwd(), entry.configDir);
+}
+
+function resolveConfigPath(): string {
+  return path.join(resolveConfigDir(), entry.configFile);
+}
+
+function buildHookCommand(scriptPath: string): string {
+  return `node "${scriptPath}"`;
+}
+
+function isElydoraCommand(cmd: string, agentId?: string): boolean {
+  if (!cmd.includes('elydora')) return false;
+  if (agentId) {
+    return cmd.includes(agentId);
+  }
+  return true;
+}
+
+function filterElydoraEntries(arr: Array<Record<string, unknown>>, agentId?: string): Array<Record<string, unknown>> {
+  return arr.filter((h) => {
+    if (typeof h.bash === 'string' && isElydoraCommand(h.bash, agentId)) return false;
+    if (typeof h.powershell === 'string' && isElydoraCommand(h.powershell, agentId)) return false;
+    return true;
+  });
+}
+
+export const copilotPlugin: AgentPlugin = {
+  async install(config: InstallConfig): Promise<void> {
+    const configDir = resolveConfigDir();
+    await fsp.mkdir(configDir, { recursive: true });
+
+    const configPath = resolveConfigPath();
+    let settings: Record<string, unknown> = { version: 1 };
+
+    try {
+      const raw = await fsp.readFile(configPath, 'utf-8');
+      settings = JSON.parse(raw);
+    } catch {
+      // Start fresh
+    }
+
+    settings.version = 1;
+
+    if (!settings.hooks || typeof settings.hooks !== 'object') {
+      settings.hooks = {};
+    }
+    const hooks = settings.hooks as Record<string, unknown>;
+
+    // --- preToolUse (guard — freeze enforcement) ---
+    if (!Array.isArray(hooks.preToolUse)) {
+      hooks.preToolUse = [];
+    }
+    const preFiltered = filterElydoraEntries(hooks.preToolUse as Array<Record<string, unknown>>);
+    preFiltered.push({
+      type: 'command',
+      bash: buildHookCommand(config.guardScriptPath),
+      powershell: buildHookCommand(config.guardScriptPath),
+      timeoutSec: 5,
+    });
+    hooks.preToolUse = preFiltered;
+
+    // --- postToolUse (audit logging) ---
+    if (!Array.isArray(hooks.postToolUse)) {
+      hooks.postToolUse = [];
+    }
+    const postFiltered = filterElydoraEntries(hooks.postToolUse as Array<Record<string, unknown>>);
+    postFiltered.push({
+      type: 'command',
+      bash: buildHookCommand(config.hookScriptPath),
+      powershell: buildHookCommand(config.hookScriptPath),
+      timeoutSec: 5,
+    });
+    hooks.postToolUse = postFiltered;
+
+    settings.hooks = hooks;
+    await fsp.writeFile(configPath, JSON.stringify(settings, null, 2) + '\n', 'utf-8');
+  },
+
+  async uninstall(agentId?: string): Promise<void> {
+    const configPath = resolveConfigPath();
+
+    let settings: Record<string, unknown>;
+    try {
+      const raw = await fsp.readFile(configPath, 'utf-8');
+      settings = JSON.parse(raw);
+    } catch {
+      return;
+    }
+
+    const hooks = settings.hooks as Record<string, unknown> | undefined;
+    if (!hooks) return;
+
+    if (Array.isArray(hooks.preToolUse)) {
+      hooks.preToolUse = filterElydoraEntries(hooks.preToolUse as Array<Record<string, unknown>>, agentId);
+    }
+    if (Array.isArray(hooks.postToolUse)) {
+      hooks.postToolUse = filterElydoraEntries(hooks.postToolUse as Array<Record<string, unknown>>, agentId);
+    }
+
+    await fsp.writeFile(configPath, JSON.stringify(settings, null, 2) + '\n', 'utf-8');
+  },
+
+  async status(): Promise<PluginStatus> {
+    const configPath = resolveConfigPath();
+
+    let hookConfigured = false;
+    let hookScriptPath = '';
+    try {
+      const raw = await fsp.readFile(configPath, 'utf-8');
+      const settings = JSON.parse(raw);
+      const hooks = settings.hooks as Record<string, unknown> | undefined;
+      if (hooks) {
+        const check = (arr: unknown) =>
+          Array.isArray(arr) && (arr as Array<Record<string, unknown>>).some(
+            (h) =>
+              (typeof h.bash === 'string' && h.bash.includes('elydora')) ||
+              (typeof h.powershell === 'string' && h.powershell.includes('elydora')),
+          );
+        hookConfigured = check(hooks.preToolUse) && check(hooks.postToolUse);
+
+        // Extract hook script path from postToolUse bash/powershell command
+        if (hookConfigured && Array.isArray(hooks.postToolUse)) {
+          for (const h of hooks.postToolUse as Array<Record<string, unknown>>) {
+            const cmd = (h.bash || h.powershell) as string;
+            if (cmd && cmd.includes('elydora')) {
+              hookScriptPath = cmd.replace(/^node\s+"?/, '').replace(/"?\s*$/, '');
+            }
+          }
+        }
+      }
+    } catch {
+      // Config not readable
+    }
+
+    let hookScriptExists = false;
+    if (hookScriptPath) {
+      try {
+        await fsp.access(hookScriptPath);
+        hookScriptExists = true;
+      } catch {
+        // File doesn't exist
+      }
+    }
+
+    return {
+      installed: hookConfigured && hookScriptExists,
+      agentName: AGENT_KEY,
+      displayName: entry.name,
+      hookConfigured,
+      hookScriptExists,
+      configPath,
+    };
+  },
+};