feat(aiand): add GLM 5.3 and Qwen 3.8 27B

[fenilmodi00]

Summary

Adds two new models served by the ai& (aiand) provider at https://api.aiand.com/v1:

• zai-org/glm-5.3 (GLM 5.3)
• qwen/qwen3.8-27b (Qwen 3.8 27B)

Details

providers/aiand/models/zai-org/glm-5.3.toml

• Base model: zhipuai/glm-5.3
• Pricing: $1.00 input / $4.00 output per 1M tokens (USD), cached input $0.30 / 1M tokens
• Context window: 1,048,576 tokens
• Reasoning options: reasoning_effort probed live on 2026-08-29; accepts ["none", "low", "xhigh", "max"] (rejects minimal, medium, high with 400)
• Modalities: Inherits ["text"] from base

providers/aiand/models/qwen/qwen3.8-27b.toml

• Base model: alibaba/qwen3.8-27b
• Pricing: $0.40 input / $3.00 output per 1M tokens (USD), cached input $0.20 / 1M tokens
• Context window: 262,144 tokens
• Reasoning options: reasoning_effort probed live on 2026-08-29; accepts ["none", "low", "medium", "xhigh"] (rejects minimal, high, max with 400)
• Modalities: ["text", "image", "video", "pdf"] (PDF supported via Files API / document conversion per catalog & live probe)

Verification

• Verified against live https://api.aiand.com/v1/models catalog endpoint
• Live chat completions probed with each reasoning_effort value and input modality
• Inherits cleanly from existing lab base models (models/zhipuai/glm-5.3.toml and models/alibaba/qwen3.8-27b.toml)
• Validated against catalog schema