[Issue]: Expand docs with end-to-end examples for multi-panel, tenancy, alerts, and custom events

[MrAdder]

Issue Type

Documentation

Summary

Add practical end-to-end examples for common real-world package setups.

Problem / Context

The current docs explain the package well, but users adopting the package in more complex setups would benefit from concrete examples instead of only reference-style guidance.

Proposed Solution

Add example-driven documentation for multi-panel usage, tenancy-aware setups, alert configuration, and custom event flows.

Acceptance Criteria

• The docs include end-to-end examples for multi-panel usage.
• The docs include tenancy-related examples where supported.
• Alerts and custom events have example-driven guides, not only configuration reference.

Implementation Notes

Keep examples realistic and aligned with supported Laravel and Filament versions. Prefer small, copyable examples over overly broad guides.

Testing Notes

Build the docs site locally and verify code samples are accurate and internally consistent.

Additional Context

This should improve adoption and reduce repeated support questions.