feat: add NVIDIA NIM and MiniMax provider support (#552)

* feat: add NVIDIA NIM and MiniMax provider support

- Add nvidia-nim and minimax to --provider CLI flag
- Add model discovery for NVIDIA NIM (160+ models) and MiniMax
- Update /model picker to show provider-specific models
- Fix provider detection in startup banner
- Update .env.example with new provider options

Supported providers:
- NVIDIA NIM: https://integrate.api.nvidia.com/v1
- MiniMax: https://api.minimax.io/v1

* fix: resolve conflict in StartupScreen (keep NVIDIA/MiniMax + add Codex detection)

* fix: resolve providerProfile conflict (add imports from main, keep NVIDIA/MiniMax)

* fix: revert providerSecrets to match main (NVIDIA/MiniMax handled elsewhere)

* fix: add context window entries for NVIDIA NIM and new MiniMax models

* fix: use GLM-5 as NVIDIA NIM default and MiniMax-M2.5 for consistency

* fix: address remaining review items - add GLM/Kimi context entries, max output tokens, fix .env.example, revert to Nemotron default

* fix: filter NVIDIA NIM picker to chat/instruct models only, set provider-specific API keys from saved profiles

* chore: add more NVIDIA NIM context window entries for popular models

* fix: address remaining non-blocking items - fix base model, clear provider API keys on profile switch

src/utils/model/modelOptions.ts

@@ -35,6 +35,8 @@ import { has1mContext } from '../context.js'
 import { getGlobalConfig } from '../config.js'
 import { getActiveOpenAIModelOptionsCache } from '../providerProfiles.js'
 import { getCachedOllamaModelOptions, isOllamaProvider } from './ollamaModels.js'
+import { getCachedNvidiaNimModelOptions, isNvidiaNimProvider } from './nvidiaNimModels.js'
+import { getCachedMiniMaxModelOptions, isMiniMaxProvider } from './minimaxModels.js'
 import { getAntModels } from './antModels.js'
 
 // @[MODEL LAUNCH]: Update all the available and default model option strings below.
@@ -390,6 +392,26 @@ function getModelOptionsBase(fastMode = false): ModelOption[] {
     return [defaultOption]
   }
 
+  // When using NVIDIA NIM, show models from the NVIDIA catalog
+  if (isNvidiaNimProvider()) {
+    const defaultOption = getDefaultOptionForUser(fastMode)
+    const nvidiaModels = getCachedNvidiaNimModelOptions()
+    if (nvidiaModels.length > 0) {
+      return [defaultOption, ...nvidiaModels]
+    }
+    return [defaultOption]
+  }
+
+  // When using MiniMax, show models from the MiniMax catalog
+  if (isMiniMaxProvider()) {
+    const defaultOption = getDefaultOptionForUser(fastMode)
+    const minimaxModels = getCachedMiniMaxModelOptions()
+    if (minimaxModels.length > 0) {
+      return [defaultOption, ...minimaxModels]
+    }
+    return [defaultOption]
+  }
+
   if (process.env.USER_TYPE === 'ant') {
     // Build options from antModels config
     const antModelOptions: ModelOption[] = getAntModels().map(m => ({