chore(platform):Refactor GraphExecution naming clash and remove unused Graph Execution functions

[majdyz]

This is a follow-up of #8752

There are several APIs and functions related to graph execution that are unused now.
There is also confusion about the name of GraphExecution that exists in graph.py & execution.py.

Changes 🏗️

• Renamed GraphExecution in execution.py to GraphExecutionEntry, this is only used as a queue entry for execution.
• Removed unused get_graph_execution & list_executions in execution.py.
• Removed with_run option on get_graph function in graph.py.
• Removed GraphMetaWithRuns
• Removed exposed functions only for testing.
• Removed executions fields in Graph model.

Checklist 📋

For code changes:

• I have clearly listed my changes in the PR description
• I have made a test plan
• I have tested my changes according to the test plan:
  • ...

Example test plan

• Create from scratch and execute an agent with at least 3 blocks
• Import an agent from file upload, and confirm it executes correctly
• Upload agent to marketplace
• Import an agent from marketplace and confirm it executes correctly
• Edit an agent from monitor, and confirm it executes correctly

For configuration changes:

• .env.example is updated or already compatible with my changes
• docker-compose.yml is updated or already compatible with my changes
• I have included a list of my configuration changes in the PR description (under Changes)

Examples of configuration changes

• Changing ports
• Adding new services that need to communicate with each other
• Secrets or environment variable changes
• New or infrastructure changes such as databases

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[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Class Renaming Verify that renaming GraphExecution to GraphExecutionEntry doesn't break any external integrations or references not caught by the compiler API Changes Validate that removing the with_runs parameter from get_graphs() and removing list_graph_runs endpoint doesn't break any client functionality Type Changes Ensure removal of GraphMetaWithRuns type and its references is handled properly across the frontend codebase

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[kcze]

Good cleanup 😊

Addressed