feat: support custom OpenAI-compatible API endpoints

.gitignore

@@ -17,3 +17,4 @@ iob_npm.dode
 
 #ignore .commitinfo created by ioBroker release script
 .commitinfo
+/.claude/settings.local.json

CLAUDE.md

@@ -0,0 +1,93 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+ioBroker.javascript is a JavaScript/TypeScript/Blockly script engine adapter for the ioBroker home automation platform. It runs as a daemon adapter that executes user-written scripts in a sandboxed environment, with a web-based editor UI (Monaco + Blockly) and an admin configuration panel.
+
+## Build Commands
+
+```bash
+# Full build (backend TypeScript + both frontends)
+npm run build
+
+# Backend only (TypeScript → build/)
+npm run build-backend
+
+# Editor UI only (src-editor → admin/)
+npm run build-editor
+
+# Admin config UI only (src-admin → admin/custom/)
+npm run admin-build
+
+# Install all dependencies (root + src-editor + src-admin)
+npm run npm
+```
+
+## Testing
+
+```bash
+# All tests (declaration checks + integration)
+npm test
+
+# Individual test suites
+npm run test:declarations    # TypeScript declaration compilation checks
+npm run test:integration     # Mocha integration tests (test/testFunctions.js etc.)
+npm run test:scheduler       # Scheduler/cron tests only
+npm run test:package         # Package structure validation
+
+# Run a single test file directly
+npx mocha test/testScheduler.js --exit
+```
+
+Test framework is Mocha, configured via `.mocharc.json`. Tests are in `test/`.
+
+## Linting
+
+```bash
+npm run lint          # Lint backend (root) only
+npm run lint-all      # Lint root + src-editor + src-admin
+```
+
+ESLint uses `@iobroker/eslint-config` (flat config in `eslint.config.mjs`). Prettier config extends `@iobroker/eslint-config/prettier.config.mjs`. The root ESLint config only covers `src/` — frontend directories have their own configs.
+
+## Architecture
+
+### Three codebases in one repo
+
+1. **Backend adapter** (`src/` → compiled to `build/`): Node.js TypeScript, compiled to CommonJS. Entry point is `src/main.ts`. Runs as an ioBroker adapter daemon.
+
+2. **Script editor UI** (`src-editor/`): React + TypeScript app built with Vite. Contains the Monaco code editor, Blockly visual editor, script management sidebar, log viewer, and OpenAI integration. Built output is copied to `admin/` by `tasks.js`.
+
+3. **Admin config UI** (`src-admin/`): React + TypeScript app built with Vite. Provides adapter configuration via `@iobroker/json-config`. Built output goes to `admin/custom/`.
+
+Each frontend has its own `package.json`, `node_modules`, and ESLint config. The build orchestration in `tasks.js` handles cleanup, npm installs, compilation, and copying built assets to `admin/`.
+
+### Key backend modules (`src/lib/`)
+
+- **`sandbox.ts`** (~244KB) — The script execution sandbox. Provides all global functions available to user scripts (`getState`, `setState`, `on`, `schedule`, `createState`, `httpGet`, etc.). This is the core of the adapter.
+- **`scheduler.ts`** — Cron and astro-based scheduling engine (sunrise/sunset events via suncalc2).
+- **`protectFs.ts`** — Filesystem access control for sandboxed scripts.
+- **`debugger.ts`** — Script debugging support.
+- **`mirror.ts`** — Mirrors scripts to/from the filesystem.
+- **`javascript.d.ts`** (~140KB) — Complete TypeScript type definitions for the script API, used for editor autocompletion.
+- **`typescriptTools.ts`** — TypeScript compilation for user scripts (via `virtual-tsc`).
+
+### Build orchestration (`tasks.js`)
+
+Custom Node.js build script using `@iobroker/build-tools`. Supports granular steps via CLI flags (`--0-clean`, `--1-npm`, `--2-build`, `--3-copy`, `--4-patch`). The `npm run build` command runs backend compilation first, then `node tasks` for the full frontend build pipeline.
+
+### Adapter configuration
+
+`io-package.json` defines adapter metadata, native configuration defaults, instance objects (astro variables, debug states), and ioBroker dependency requirements (js-controller >=5.0.19, admin >=7.6.1).
+
+## TypeScript Configuration
+
+- Backend targets ES2022, compiled to CommonJS (`tsconfig.build.json`)
+- `@types/node` major version should match the lowest supported Node.js version
+- Frontend apps target Chrome 89+ (Vite build config)
+
+## CI/CD
+
+GitHub Actions (`.github/workflows/test-and-release.yml`) runs lint, build, and adapter tests across Node 18/20/22/24 on Ubuntu, Windows, and macOS. Releases are automated via `@alcalzone/release-script` with NPM publish and GitHub release creation.

README.md

@@ -25,6 +25,14 @@ Executes Javascript, Typescript Scripts.
 ## Changelog
 <!--
 	### **WORK IN PROGRESS**
+* Added support for custom OpenAI-compatible API endpoints (e.g. Ollama, LM Studio, Google Gemini, DeepSeek, OpenRouter)
+* Added configurable base URL in adapter settings
+* Models are now fetched dynamically from the configured API endpoint
+* Added "Test API connection" button in adapter settings
+* Added error handling with user-friendly messages for unreachable providers
+* Added retry functionality for failed model loading
+* All API calls (models + chat) are proxied server-side to avoid CORS issues with local providers
+* Strip LLM thinking artifacts from responses (for local models like Ollama)
 -->
 ### 9.0.18 (2026-01-11)
 * (@GermanBluefox) Corrected an error message with `lastSync`
@@ -40,7 +48,7 @@ Executes Javascript, Typescript Scripts.
 ### 9.0.10 (2025-07-27)
 * (@klein0r) Added Blockly block to format a numeric value
 * (@GermanBluefox) Fixing some blocks in blockly: cron, time
-* (@GermanBluefox) Added new block: "unconditional return"
+* (@GermanBluefox) Added a new block: "unconditional return"
 * (@GermanBluefox) Type definitions for TypeScript were updated
 * (@GermanBluefox) Corrected bug with deleting of sub-folders