fix: switch to @vercel/ncc for proper dependency bundling

- Replace tsdown with @vercel/ncc which is the standard bundler for GitHub Actions
- This ensures all dependencies (@actions/core, @actions/github, etc.) are properly bundled
- Fixes 'Cannot find module @actions/core' error when action runs in GitHub workflows
- All tests pass and bundle loads successfully

Author: dcramer

dist/cli.d.ts

@@ -0,0 +1,2 @@
+#!/usr/bin/env node
+export {};

dist/cli.d.ts.map

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+interface EvaluationResult {
+    isHumanLike: boolean;
+    confidence: number;
+    reasons: string[];
+    patterns: string[];
+}
+export declare function evaluateCode(code: string, _filename: string): EvaluationResult;
+export {};

dist/evaluator.d.ts

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+export declare function verifyWebhookSignature(body: string, signature: string | null, secret: string): Promise<boolean>;
+export interface GitHubConfig {
+    GITHUB_TOKEN?: string;
+    GITHUB_WEBHOOK_SECRET: string;
+}
+export declare class GitHubClient {
+    private token?;
+    private webhookSecret;
+    constructor(config: GitHubConfig);
+    private getHeaders;
+    fetchPullRequestFiles(owner: string, repo: string, pullNumber: number): Promise<Array<{
+        filename: string;
+        patch: string;
+    }>>;
+    private isCodeFile;
+    verifyWebhookSignature(body: string, signature: string | null): Promise<boolean>;
+    createCheckRun(owner: string, repo: string, data: {
+        name: string;
+        head_sha: string;
+        status: 'queued' | 'in_progress' | 'completed';
+        conclusion?: 'success' | 'failure' | 'neutral' | 'cancelled' | 'skipped' | 'timed_out';
+        output?: {
+            title: string;
+            summary: string;
+            text?: string;
+        };
+    }): Promise<void>;
+}
+export declare function fetchPullRequestFiles(owner: string, repo: string, pullNumber: number, token?: string): Promise<any[]>;
+export declare function createCheckRun(owner: string, repo: string, data: {
+    name: string;
+    head_sha: string;
+    status: 'queued' | 'in_progress' | 'completed';
+    conclusion?: 'success' | 'failure' | 'neutral' | 'cancelled' | 'skipped' | 'timed_out';
+    output?: {
+        title: string;
+        summary: string;
+        text?: string;
+    };
+}, token: string): Promise<void>;

dist/evaluator.d.ts.map

@@ -0,0 +1 @@
+export {};