fix(automations): remove broken AI thread init, fix nav search param, remove rounded-full

[Israeltheminer]

Summary

Closes #673, closes #674

Bugs fixed

• Bug: AI assistant auto-loads a response in editor without user query ( create automation ) #674 — AI assistant auto-loads a response on create — the create dialog was firing `chatWithWorkflowAssistant` immediately after creation, causing an AI message to appear without any user query.
• Bug: Assistant chat sidebar not visible on initial load of Editor step ( view automation ) #673 — Assistant chat sidebar not visible on initial load — navigating to an automation from the table was missing `panel: 'ai-chat'` in the search params, so the sidebar wasn't activated on first load.
• Stray `rounded-full` on chat input send button — inconsistent class removed to match the design system.

[greptile-apps]

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[coderabbitai]

📝 Walkthrough

Walkthrough

This PR removes AI chat thread initialization from the automation creation flow and adjusts related UI components. Specifically, it eliminates imports and logic for chat thread creation and metadata updates from the automation creation dialog, removes rounded styling from a Send button, and adds an "ai-chat" panel query parameter to the automations table row navigation handler. The automation creation process now focuses solely on creating the automation and navigating to it, without AI infrastructure setup.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• feat(platform): custom agents empty state, skeleton, and toggle improvements #457: Directly opposes this PR's changes to automation-create-dialog.tsx, adding back the AI thread initialization and metadata update logic that this PR removes.
• feat: UI improvements and automation enhancements #279: Modifies automations AI/chat integration and related navigation patterns, including the ai-chat panel behavior affected by this PR's navigation changes.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes all three main changes in the pull request: removing broken AI thread initialization, fixing navigation search parameters, and removing the rounded-full CSS class.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/automations-bugs

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