feat(opencode): Add PDF attachment Drag and Drop

[gitpush-gitpaid]

Issue for this PR

Closes #

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Adds PDF drag and drop support

Was able to attach images before, broadened scope to be able to drag and drop PDF's to models that can handle PDF input

How did you verify your code works?

• Ran bun dev locally with OPENCODE_MODELS_PATH
• Pointed at a local models.dev dist/_api.json and OPENCODE_DISABLE_MODELS_FETCH=1,
• Then dragged a test PDF to the prompt and confirmed it was attached as [PDF 1].
• Ran it and asked to prove it can read the PDF and worked as expected.

Screenshots / recordings

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[github-actions]

Hey! Your PR title Feat: Add PDF attachment Drag and Drop doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Based on my search, I found one potentially related PR:

Related PR:

• PR feat(tui): improve clipboard paste and drag-and-drop file handling on Linux #14552 - "feat(tui): improve clipboard paste and drag-and-drop file handling on Linux" (feat(tui): improve clipboard paste and drag-and-drop file handling on Linux #14552)
  • This PR also deals with drag-and-drop file handling, though it appears focused on the TUI (terminal UI) and Linux-specific improvements. However, there may be overlapping work on drag-and-drop functionality that's worth reviewing to ensure no conflicts or duplication.

The current PR #16926 appears to be the primary/most recent implementation of PDF drag-and-drop support. The other results (like #15848 for large file attachments and #9656 for multi-file read) are related to file handling but don't specifically duplicate the PDF drag-and-drop feature.

[github-actions]

Thanks for updating your PR! It now meets our contributing guidelines. 👍

[rekram1-node]

Will give this review today/tmr I think opentui may have added something we can connect to now

[gitpush-gitpaid]

no problem

thanks

[rekram1-node]

/review

[rekram1-node]

sorry it took so long! lgtm

[github-actions]

lgtm

[gitpush-gitpaid]

no worries bro thank you!