Examine source code of Promptive Sentry

{
  "manifest_version": 3,
  "name": "Promptive Sentry – Authoritative AI Suite",
  "version": "1.1.14",
  "description": "Optimize AI conversations with a unified session manager. Seamlessly upgrade prompts, track usage pacing, and vault context.",
  "browser_specific_settings": {
    "gecko": {
      "id": "promptive-sentry@promptive.ai",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "personalCommunications"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "https://claude.ai/*",
    "https://chatgpt.com/*",
    "https://gemini.google.com/*",
    "https://promptive-backend-1052637499200.asia-south1.run.app/*"
  ],
  "background": {
    "scripts": [
      "background/worker.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*",
        "https://chatgpt.com/*",
        "https://gemini.google.com/*"
      ],
      "css": [
        "styles/injected_v2.css"
      ],
      "js": [
        "utils/browser-polyfill.min.js",
        "utils/constants.js",
        "utils/logger.js",
        "utils/deviceId.js",
        "content/settingsManager.js",
        "content/platformDetector.js",
        "content/revertManager.js",
        "content/diffView.js",
        "content/promptiveUpgrader.js",
        "content/buttonInjector.js",
        "content/domObserver.js",
        "content/memoryStorage.js",
        "content/conversationReader.js",
        "utils/fallbackGenerator.js",
        "content/sentryMemory.js",
        "content/index.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "src/claude-counter/inject.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "src/claude-counter/counter-tokenizer.js",
        "src/claude-counter/counter-storage.js",
        "src/claude-counter/counter-sse.js",
        "src/claude-counter/counter-usage.js",
        "src/claude-counter/counter-burnrate.js",
        "src/claude-counter/counter-ui.js",
        "src/claude-counter/counter-content.js"
      ],
      "css": [
        "src/claude-counter/counter-styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_popup": "popup/popup.html"
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}