Feat/new snaps producer

[FSAFTik]

Purpose

Adds a SnapsUploader Node who handles sending snaps to the hub. Takes as input a buffer of new SnapData message who represents a complete snap. Basically a python wrapper for dai.EventsManager

Specification

Adds new node and message

Dependencies & Potential Impact

Depends on depthai=3.2.0 release

Deployment Plan

None / not applicable

Testing & Validation

Added unit tests for both node and message + tested by using in oak examples data-collection app

[Copilot]

Pull Request Overview

This PR replaces the SnapsProducer and SnapsProducerFrameOnly nodes with a new SnapsUploader node that uses a cleaner message-passing architecture. Instead of directly sending snaps via EventsManager, the new design introduces a SnapData message class to encapsulate snap information, which is then processed by the SnapsUploader node.

Key changes:

• Introduced SnapData message class to represent snap events with frame, detections, tags, and metadata
• Replaced SnapsProducer nodes with simpler SnapsUploader node that receives SnapData messages
• Updated depthai dependency version specification from >=3.0.0rc2,<=3.0.0 to >=3.0.0.dev0,<3.1

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
depthai_nodes/message/snap_data.py	New message class for encapsulating snap data including frame, detections, tags, and extras
depthai_nodes/message/init.py	Exports the new SnapData message class
depthai_nodes/node/snaps_uploader.py	New host node that receives SnapData messages and uploads to DepthAI Hub Events API
depthai_nodes/node/init.py	Updated exports to replace SnapsProducer with SnapsUploader
depthai_nodes/node/snaps_producer.py	Removed old producer implementation
tests/unittests/test_messages/test_snap_data.py	Comprehensive tests for SnapData message class
tests/unittests/test_nodes/test_host_nodes/test_snaps_uploader_node.py	Tests for SnapsUploader node functionality
tests/unittests/test_nodes/test_host_nodes/test_snaps_producer_node.py	Removed tests for old producer nodes
requirements.txt	Updated depthai version range

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[Copilot]

This method requires 2 positional arguments, whereas overridden BaseHostNode.process requires 1.

Suggested change

	def process(self, snap: dai.Buffer):
	def process(self):
	snap = self.get_input() # Assumes BaseHostNode provides a method to get the next input