feat: Add new API endpoints and HTML pages for ML model management

- Implemented HTML pages for datasets, models, training, testing, and results.
- Created API endpoints for managing repositories, results, tests, and training sessions.
- Added functionality for streaming training progress via Server-Sent Events (SSE).
- Introduced a Dockerfile for the ML runner with necessary dependencies.
- Developed an SDK for user code execution within the runner container.
- Enhanced CSS styles for improved UI layout and navigation.
- Established a layout template for consistent HTML structure across pages.
- Added JavaScript for dynamic interactions on the models page.
- Implemented WebSocket handling for real-time communication with kiosk devices and controllers.
- Implemented model registration and management API at /api/models
- Added Gitea proxy API for repository interactions at /api/repos
- Created results API for listing and comparing training results at /api/results
- Developed training management API for enqueueing and retrieving training jobs at /api/trainings
- Introduced SSE endpoint for live training progress updates
- Added HTML pages for models, datasets, and training management
- Created a Dockerfile for the ML runner with necessary dependencies
- Developed SDK for user code execution within the runner container
- Enhanced CSS styles for improved UI/UX
- Implemented WebSocket communication for real-time device and controller interactions in the kiosk system

api/src/migrations/006_jobs.sql

@@ -0,0 +1,27 @@
+-- Database: ml
+-- Tabella jobs: ciclo di vita di un lavoro asincrono (training oggi, domani altro).
+-- L'api-service espone /jobs /queue /pageconnections per coordinare accessi e coda.
+
+CREATE TABLE IF NOT EXISTS jobs (
+    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    type        TEXT NOT NULL,                 -- 'train' | 'test' | ...
+    status      TEXT NOT NULL DEFAULT 'queued',-- queued|running|succeeded|failed|cancelled
+    payload     JSONB NOT NULL DEFAULT '{}'::JSONB,
+    result      JSONB,
+    error       TEXT,
+    created_by  TEXT NOT NULL,
+    created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at  TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    started_at  TIMESTAMPTZ,
+    finished_at TIMESTAMPTZ,
+    CONSTRAINT jobs_status_ok CHECK (status IN ('queued','running','succeeded','failed','cancelled'))
+);
+CREATE INDEX IF NOT EXISTS idx_jobs_status     ON jobs(status);
+CREATE INDEX IF NOT EXISTS idx_jobs_type       ON jobs(type);
+CREATE INDEX IF NOT EXISTS idx_jobs_created_by ON jobs(created_by);
+CREATE INDEX IF NOT EXISTS idx_jobs_created_at ON jobs(created_at DESC);
+
+DROP TRIGGER IF EXISTS trg_jobs_updated_at ON jobs;
+CREATE TRIGGER trg_jobs_updated_at
+    BEFORE UPDATE ON jobs
+    FOR EACH ROW EXECUTE FUNCTION set_updated_at();