refactor(executor): split providers and preserve legacy entrypoints

feat: passthrough upstream response headers to clients

refactor(translator, executor): remove redundant `bytes.Clone` calls for improved performance

refactor(executor): optimize payload cloning and streamline SDK translator usage

feat(openai): add responses/compact support

feat(executor): add request_id to error logs

feat(executor): apply payload rules using requested model

feat(registry): support provider-specific model info lookup

refactor(thinking): pass source and target formats to ApplyThinking for cross-format validation

fix(executor): properly handle thinking application errors

refactor: improve thinking logic

feat(executor): add HttpRequest support across executors for better http request handling

feat(executor): enhance payload translation with original request context

refactor(executor): resolve upstream model at conductor level before execution

feat(gemini): add per-key model alias support for Gemini provider

refactor(thinking): export thinking helpers

refactor(executor): clarify executor comments and oauth names

refactor(executor): clarify providers and streams

Merge pull request #481 from sususu98/fix/increase-buffer-size

feat(util): implement dynamic thinking suffix normalization and refactor budget resolution logic

fix(executor): increase buffer size for stream scanners to 50MB across multiple executors

fix(executor): centralize default thinking config

feat(executor): normalize thinking budget across all Gemini executors

refactor(executor): dedupe thinking metadata helpers across Gemini executors

fix(gemini): parse stream usage from JSON, skip thoughtSignature

fix(gemini): filter SSE usage metadata in streams

**fix(runtime): simplify scanner buffer allocation in executor implementations**

**feat(runtime): add payload configuration support for executors**

feat(config): support HTTP headers across providers

fix(executor): remove `safetySettings` from payload for Gemini requests

feat(gemini): add Gemini API key endpoints

refactor(executor): summarize API error bodies of html in debug logs

fix(executor): only apply thinking config to supported models

fix(gemini-executor): uppercase responseModalities

Refactor executor error handling and usage reporting

Enhance logging for API requests and responses across executors

Feature: #103

feat(registry, executor, util): add support for `gemini-2.5-flash-image-preview` and improve aspect ratio handling

fix(gemini): Disable thinking config for incompatible models

feat(registry/runtime): add Gemini 2.5 model and increase buffer sizes

feat(runtime): introduce `newProxyAwareHTTPClient` for enhanced proxy handling

refactor(config): migrate to `SDKConfig` and streamline proxy handling

rebuild branch

remove all

chore(docs): add and refine package-level comments across modules

fix(gemini): handle "[DONE]" chunk, trim "data:" prefix, and remove session_id from requests

refactor(executor): remove ClientAdapter and legacy fallback logic

feat(translators): add token counting support for Claude and Gemini responses

feat(usage): implement usage tracking infrastructure across executors

feat(gemini-executor): implement `CountTokens` method with request translation and API integration