feat: add MiniMax provider support (M2.7, M2.5, M2.5-highspeed)

[octo-patch]

Summary

• Add MiniMax as a new LLM provider with OpenAI-compatible API integration
• Support MiniMax-M2.7 (default), MiniMax-M2.5, and MiniMax-M2.5-highspeed models (204K context)
• Override generateObject/streamObject to use prompt-based JSON extraction (MiniMax does not support response_format)
• Clamp temperature to (0.0, 1.0] range (MiniMax constraint)
• Support configurable base URL via MINIMAX_BASE_URL env var (default: https://api.minimax.io/v1)
• Add MINIMAX_API_KEY environment variable for authentication

Changes

File	Description
src/lib/models/providers/minimax/index.ts	MiniMax provider with M2.7/M2.5/M2.5-highspeed models
src/lib/models/providers/minimax/miniMaxLLM.ts	LLM class extending OpenAILLM with temperature clamping
src/lib/models/providers/index.ts	Register MiniMax in provider registry
README.md	Add MiniMax to supported providers list

Test plan

• TypeScript compilation passes (tsc --noEmit)
• Configure MiniMax API key and verify chat completion works
• Verify temperature clamping with temperature=0 input
• Test generateObject/streamObject with structured output

[cubic-dev-ai]

1 issue found across 4 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="src/lib/models/providers/minimax/miniMaxLLM.ts">

<violation number="1" location="src/lib/models/providers/minimax/miniMaxLLM.ts:123">
P2: Temperature normalization is incomplete for MiniMax: values above 1 are not clamped, and inherited text paths can still send invalid config-level temperatures.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}

[cubic-dev-ai]

P2: Temperature normalization is incomplete for MiniMax: values above 1 are not clamped, and inherited text paths can still send invalid config-level temperatures.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At src/lib/models/providers/minimax/miniMaxLLM.ts, line 123:

<comment>Temperature normalization is incomplete for MiniMax: values above 1 are not clamped, and inherited text paths can still send invalid config-level temperatures.</comment>

<file context>
@@ -0,0 +1,131 @@
+    if (
+      options.temperature !== undefined &&
+      options.temperature !== null &&
+      options.temperature <= 0
+    ) {
+      return { ...options, temperature: 0.01 };
</file context>

[angusthefuzz]

M2.7 doesn't seem to work. I get invalid chat setting (2013)
M2.5 works great.