🧠 feat: Thinking Budget, Include Thoughts, and Dynamic Thinking for Gemini 2.5 (#8055)

* feat: support thinking budget parameter for Gemini 2.5 series (#6949, #7542)

https://ai.google.dev/gemini-api/docs/thinking#set-budget

* refactor: update thinking budget minimum value to -1 for dynamic thinking

- see: https://ai.google.dev/gemini-api/docs/thinking#set-budget

* chore: bump @librechat/agents to v2.4.43

* refactor: rename LLMConfigOptions to OpenAIConfigOptions for clarity and consistency

- Updated type definitions and references in initialize.ts, llm.ts, and openai.ts to reflect the new naming convention.
- Ensured that the OpenAI configuration options are consistently used across the relevant files.

* refactor: port Google LLM methods to TypeScript Package

* chore: update @librechat/agents version to 2.4.43 in package-lock.json and package.json

* refactor: update thinking budget description for clarity and adjust placeholder in parameter settings

* refactor: enhance googleSettings default value for thinking budget to support dynamic adjustment

* chore: update @librechat/agents to v2.4.44 for Vertex Dynamic Thinking workaround

* refactor: rename google config function, update `createRun` types, use `reasoning` as `reasoningKey` for Google

* refactor: simplify placeholder handling in DynamicInput component

* refactor: enhance thinking budget description for clarity and allow automatic decision by setting to "-1"

* refactor: update text styling in OptionHover component for improved readability

* chore: update @librechat/agents dependency to v2.4.46 in package.json and package-lock.json

* chore: update @librechat/api version to 1.2.5 in package.json and package-lock.json

* refactor: enhance `clientOptions` handling by filtering `omitTitleOptions`, add `json` field for Google models

---------

Co-authored-by: ciffelia <15273128+ciffelia@users.noreply.github.com>

packages/data-provider/src/schemas.ts

@@ -255,6 +255,18 @@ export const googleSettings = {
     step: 1 as const,
     default: 40 as const,
   },
+  thinking: {
+    default: true as const,
+  },
+  thinkingBudget: {
+    min: -1 as const,
+    max: 32768 as const,
+    step: 1 as const,
+    /** `-1` = Dynamic Thinking, meaning the model will adjust
+     * the budget based on the complexity of the request.
+     */
+    default: -1 as const,
+  },
 };
 
 const ANTHROPIC_MAX_OUTPUT = 128000 as const;
@@ -785,6 +797,8 @@ export const googleBaseSchema = tConversationSchema.pick({
   artifacts: true,
   topP: true,
   topK: true,
+  thinking: true,
+  thinkingBudget: true,
   iconURL: true,
   greeting: true,
   spec: true,
@@ -810,6 +824,12 @@ export const googleGenConfigSchema = z
     presencePenalty: coerceNumber.optional(),
     frequencyPenalty: coerceNumber.optional(),
     stopSequences: z.array(z.string()).optional(),
+    thinkingConfig: z
+      .object({
+        includeThoughts: z.boolean().optional(),
+        thinkingBudget: coerceNumber.optional(),
+      })
+      .optional(),
   })
   .strip()
   .optional();