chore(docs): regenerate docs metadata and remove local artifacts

Regenerate the auto-generated docs index after the docs restructure
and remove repository-local audit, PR metadata, and ad hoc test files
that should not be kept in source control

audit-report.json

@@ -1,48 +0,0 @@
-{
-  "auditReportVersion": 2,
-  "vulnerabilities": {
-    "follow-redirects": {
-      "name": "follow-redirects",
-      "severity": "moderate",
-      "isDirect": false,
-      "via": [
-        {
-          "source": 1116560,
-          "name": "follow-redirects",
-          "dependency": "follow-redirects",
-          "title": "follow-redirects leaks Custom Authentication Headers to Cross-Domain Redirect Targets",
-          "url": "https://github.com/advisories/GHSA-r4q5-vmmm-2653",
-          "severity": "moderate",
-          "cwe": ["CWE-200"],
-          "cvss": {
-            "score": 0,
-            "vectorString": null
-          },
-          "range": "<=1.15.11"
-        }
-      ],
-      "effects": [],
-      "range": "<=1.15.11",
-      "nodes": ["node_modules/follow-redirects"],
-      "fixAvailable": true
-    }
-  },
-  "metadata": {
-    "vulnerabilities": {
-      "info": 0,
-      "low": 0,
-      "moderate": 1,
-      "high": 0,
-      "critical": 0,
-      "total": 1
-    },
-    "dependencies": {
-      "prod": 421,
-      "dev": 480,
-      "optional": 158,
-      "peer": 480,
-      "peerOptional": 0,
-      "total": 1462
-    }
-  }
-}

test-kiro.ts

@@ -1,17 +0,0 @@
-import { buildKiroPayload } from "./open-sse/translator/request/openai-to-kiro.js";
-
-const messages = [];
-for (let i = 0; i < 2; i++) {
-  messages.push({ role: "user", content: `user ${i}` });
-  messages.push({ role: "assistant", content: `assistant ${i}` });
-}
-messages.push({ role: "user", content: "use tool" });
-messages.push({
-  role: "assistant",
-  tool_calls: [{ id: "call_1", function: { name: "test", arguments: "{}" } }],
-});
-messages.push({ role: "tool", tool_call_id: "call_1", content: "ok" });
-messages.push({ role: "user", content: "last user" });
-
-const payload = buildKiroPayload("kr/claude-sonnet-4.5", { messages, tools: [] }, false, {});
-console.log(JSON.stringify(payload, null, 2));