feat(provider): align provider and model workflows (#324)

* feat(provider): align provider and model workflows

* fix(provider): clear gemini/github flags and use local ollama default

* fix(provider): preserve explicit startup provider selection

* fix(provider): clear env when deleting last profile

* chore(provider): apply review nits in ProviderManager

* fix(provider): preserve explicit env on last-profile delete

* fix(provider): preserve explicit env when profile marker is stale

---------

Co-authored-by: Gitlawb <gitlawb@users.noreply.github.com>

src/utils/model/modelOptions.ts

@@ -32,6 +32,7 @@ import {
 } from './model.js'
 import { has1mContext } from '../context.js'
 import { getGlobalConfig } from '../config.js'
+import { getActiveOpenAIModelOptionsCache } from '../providerProfiles.js'
 import { getCachedOllamaModelOptions, isOllamaProvider } from './ollamaModels.js'
 
 // @[MODEL LAUNCH]: Update all the available and default model option strings below.
@@ -565,8 +566,13 @@ export function getModelOptions(fastMode = false): ModelOption[] {
     })
   }
 
-  // Append additional model options fetched during bootstrap
-  for (const opt of getGlobalConfig().additionalModelOptionsCache ?? []) {
+  const additionalOptions =
+    getAPIProvider() === 'openai'
+      ? getActiveOpenAIModelOptionsCache()
+      : getGlobalConfig().additionalModelOptionsCache ?? []
+
+  // Append additional model options fetched during bootstrap/endpoints.
+  for (const opt of additionalOptions) {
     if (!options.some(existing => existing.value === opt.value)) {
       options.push(opt)
     }