feat: Protocol v1.1.0 theta-agent C2 integration, agent install wizard, OpenBao 403 fix, nmap discovery fix, and restored documentation

docs/vault.md

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+# Vault Secrets Management
+
+The Vault Secrets feature integrates with OpenBao to provide a secure key-value store for your environment. It allows you to store sensitive information like passwords, API keys, and credentials, ensuring they are encrypted and access-controlled.
+
+## Usage
+
+You can access the Vault UI from the application's top navigation bar. 
+
+### Creating Secrets
+
+1. Click on the **New Secret** button.
+2. Enter a **Secret Path**. This acts as the name/identifier of your secret (e.g., `db-credentials`).
+3. Enter the **Secret Data** in JSON format. For example:
+   ```json
+   {
+     "username": "admin",
+     "password": "supersecretpassword123"
+   }
+   ```
+4. Click **Save Secret**.
+
+### Reading and Editing Secrets
+
+* To view a secret, click on its name in the **Secrets List**.
+* To update an existing secret, select it and click the **Edit** button. You can then modify the JSON data and save your changes.
+
+### OpenBao Integration
+
+The secrets are stored in an OpenBao backend configured in development mode. The default KV (Key-Value) version 2 engine is mounted at `secret/`. The built-in UI uses the `/api/vault/secret/` API endpoints to interact with OpenBao.
+
+## API Access
+
+If you need to programmatically access the secrets, you can interact directly with the OpenBao API using the root token (in dev mode):
+
+```bash
+# Example: Read a secret via the API
+curl -H "X-Vault-Token: root" -H "Authorization: Bearer <your-sso-token>" http://<your-sso-host>/api/vault/secret/data/<your-secret-path>
+```