[FEATURE]: Improve Workflow Execution Logs UI

[amaan1114]

Feature Summary

Add a dedicated Workflow Logs page that allows users to browse and inspect historical workflow execution logs from a centralized interface.

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Problem Statement

Currently, workflow execution logs are only available during or immediately after a workflow execution, making it difficult to review previous runs or debug issues at a later time.

A centralized logs page would provide users with an easy way to access execution history without needing to rerun workflows.

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Proposed Solution

Create a new Logs section within the application that displays workflow execution history.

The page should allow users to:

• View a list of available workflows.
• Select a workflow to inspect.
• Display all previous executions for the selected workflow.
• View execution status (Running, Success, Failed, Cancelled).
• View execution start and completion timestamps.
• Inspect node execution logs and outputs for each execution.
• Navigate between different workflow executions.

The implementation should reuse the existing execution log APIs wherever possible and follow the project's existing UI patterns.

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Benefits

• Provides a centralized location for viewing workflow execution history.
• Makes debugging workflows easier.
• Improves the overall user experience.
• Reduces the need to rerun workflows just to inspect previous logs.
• Establishes a foundation for future enhancements such as filtering, searching, and log exports.

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Additional Context

• This issue primarily focuses on the frontend implementation.
• Existing backend APIs and execution logging mechanisms should be reused where possible.
• The page should follow the project's design system and component architecture.
• Future improvements such as search, filters, pagination, and export functionality can be implemented in separate issues to keep this contribution beginner-friendly.