✨ feat: Support Cloudflare function calling

[BrandonStudio]

💻 变更类型 | Change Type

• ✨ feat
• 🐛 fix
• ♻️ refactor
• 💄 style
• 👷 build
• ⚡️ perf
• 📝 docs
• 🔨 chore

🔀 变更说明 | Description of Change

Complement Cloudflare provider:

• Support function calling
• Add Image-to-Text models
• Complement tests

📝 补充信息 | Additional Information

Won't do in this PR:

• Embeddings
• Text-to-Image
• Text-to-Speech

NOTES:

• To improve function calling performance, system prompt of plugins is disabled within Cloudflare.
• Requests with tools get non-stream response.

Former #3402

[vercel]

@BrandonStudio is attempting to deploy a commit to the LobeHub Team on Vercel.

A member of the Team first needs to authorize it.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.56%. Comparing base (49e1e08) to head (40b8f0f).
Report is 36 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4671      +/-   ##
==========================================
+ Coverage   92.53%   92.56%   +0.03%     
==========================================
  Files         522      522              
  Lines       37335    37462     +127     
  Branches     2351     3539    +1188     
==========================================
+ Hits        34547    34676     +129     
+ Misses       2788     2786       -2     

Flag	Coverage Δ
app	92.56% <100.00%> (+0.03%)	⬆️
server	97.26% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles