feat: initial release of ARTEMIS Android Agent & Automation Platform

ARTEMIS is an autonomous multimodal Android agent and mobile UI automation
platform engineered for physical devices and emulators. It combines state-of-the-art
multimodal Vision-Language Models (VLMs) with hierarchical closed-loop planning,
resilient self-healing, and deep Android subsystem integration.

Key Features & Architectural Highlights:
- Dual-Engine Orchestration:
  * Pro Engine: Multi-agent closed-loop (Planner -> Operator -> Validator/Failure Analyzer -> Summarizer) powered by LangGraph.
  * Flash Engine: Ultra-fast reactive loop for deterministic, low-latency UI execution (<35 steps).
- Multimodal Perception & Grounding:
  * Hybrid visual screenshot grounding, real-time OCR extraction, and XML accessibility hierarchy parsing.
  * Dynamic-First, Coordinate-Fallback locating strategy for maximum resilience against UI drift.
- Autonomous Self-Healing & Diagnostics:
  * Failure analyzer and safety net for popup dismissal, crash recovery, and auto-retry.
  * Diagnostic sub-agents for log analysis, video recording inspection, and object detection.
- Unified CLI & Python SDK:
  * Rich CLI with commands: init, doctor, run, trace, batch, bench, server, and mcp.
  * Fluent Python SDK with Pydantic structured output models and package locking.
- Multi-Provider LLM Architecture:
  * Support for Google Gemini, OpenAI, Anthropic Claude, Vertex AI, OpenRouter, xAI Grok, and local endpoints (Ollama/vLLM).
  * Centralized configuration in config/artemis.jsonc.
- Native MCP & Observability:
  * Model Context Protocol (MCP) server endpoints for AI IDEs.
  * Full trace recording with before/after screenshots, action overlays, and execution replays.

Change-Id: I430b93ee2b76b54cc5a3c6eeccd15d2cf29830a1

artemis/interfaces/sdk/task.py

@@ -0,0 +1,58 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import time
+from typing import Any, Literal
+from pydantic import BaseModel, Field
+
+
+class StreamEventType:
+    THOUGHT = "thought"
+    ACTION = "action"
+    OBSERVATION = "observation"
+    STEP_START = "step_start"
+    STEP_END = "step_end"
+    STATUS = "status"
+    ERROR = "error"
+
+
+class StreamEvent(BaseModel):
+    """Real-time intermediate progress event emitted during task execution."""
+
+    event_type: str = Field(
+        ..., description="Type of event: thought, action, observation, status, etc."
+    )
+    step_number: int = Field(default=0, description="1-indexed execution step")
+    payload: dict[str, Any] = Field(default_factory=dict, description="Event data dictionary")
+    timestamp: float = Field(default_factory=time.time, description="Epoch timestamp")
+
+
+class Task(BaseModel):
+    """Configures a single autonomous mobile automation request."""
+
+    goal: str = Field(..., description="High-level goal description")
+    profile: Literal["flash", "pro"] = Field(default="pro", description="Execution profile")
+    device_id: str = Field(default="default-device", description="Target device serial")
+    locked_package: str | None = Field(default=None, description="Package lock restriction")
+    max_turns: int = Field(default=30, description="Turn cutoff limit")
+
+
+class TaskResult(BaseModel):
+    """Final structured outcome of a task execution."""
+
+    trace_id: str
+    status: str
+    turns: int
+    output: Any = None
+    error: str | None = None