Fix image input in Chat UI and silence extension console errors

[ArnavGarg7]

Problem

The image attachment mechanism was completely broken on Windows because it tried to insert an inline image node at position 0 in the editor. This violates TipTap's schema and is silently dropped by ProseMirror. Additionally, there were harmless but alarming YAML schema and AST Tracker errors spamming the developer console.

Solution

• Modifies the image paste and upload mechanism to insert the image at the active selection/cursor using editor.commands.insertContent, properly delegating schema resolution to TipTap.
• Wraps the yaml.schemas registration with an extension availability check so it doesn't throw a CodeExpectedError.
• Suppresses the AST Tracker error log for non-AST files like .yaml and .json.

Fixes #12845

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Summary by cubic

Fixes broken image attachments in the Chat UI by inserting images at the cursor using TipTap chain/focus, and silences noisy console errors from YAML schema registration and the AST tracker.

• Bug Fixes

  • Insert images at the active selection via chain().focus().insertContent() for paste and upload; clipboard paste replaces the current selection.
  • Register YAML schemas only if redhat.vscode-yaml is installed.
  • Suppress "Document not found in AST tracker" logs for .yaml, .yml, .json, .md.
  • Stabilize IntelliJ Autocomplete test: start on a clean line with Esc + Enter x3, retry up to 10; Tab to accept, Enter to retry; throw an exception with debug text; avoid unresolved SDK commands.
  • Remove unused JUnit import to fix Kotlin test compilation.

• Refactors

  • Applied Prettier formatting to satisfy CI checks.

^{Written for commit 813b5d7. Summary will update on new commits.}

[github-actions]

All contributors have signed the CLA ✍️ ✅
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[ArnavGarg7]

I have read the CLA Document and I hereby sign the CLA

[cubic-dev-ai]

No issues found across 4 files

_{Re-trigger cubic}

[Copilot]

Pull request overview

This PR fixes broken image attachments in the Chat UI by inserting images at the current cursor/selection (instead of position 0), and reduces noisy console errors in the VS Code extension by guarding YAML schema registration and suppressing certain AST tracker logs.

Changes:

• Update TipTap image paste/drop/upload behavior to insert at the active selection using replaceSelectionWith / editor.commands.insertContent.
• Only register yaml.schemas when redhat.vscode-yaml is available to avoid configuration write errors.
• Suppress “Document not found in AST tracker” error logs for selected non-AST file types.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

File	Description
gui/src/components/mainInput/TipTapEditor/utils/editorConfig.ts	Paste handler now inserts images at the selection instead of document start.
gui/src/components/mainInput/TipTapEditor/TipTapEditor.tsx	Drop/upload now uses TipTap commands to insert images at the cursor.
extensions/vscode/src/activation/activate.ts	Guard YAML schema registration behind YAML extension presence.
core/nextEdit/DocumentHistoryTracker.ts	Reduce console noise by suppressing missing-AST logs for certain extensions.

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[ArnavGarg7]

I have read the CLA Document and I hereby sign the CLA

[cubic-dev-ai]

1 issue found across 1 file (changes from recent commits).

<sub>Tip: Review your code locally with the cubic CLI to iterate faster.

Re-trigger cubic</sub>