feat(agent): add tool-output and V2 escalation recipient types [ACTN-10480]

[kunaluipath]

Adds the agent + platform models needed for the V2 HITL escalation recipient flow consumed by the langchain runtime.

uipath/agent/models:

• New literal recipient classes for Workload (9), RoundRobin (10), and CustomAssignees (11) matching the storage schema v50 surface.
• New ToolOutputRecipient class accepting types USER_ID/GROUP_ID/WORKLOAD/ ROUND_ROBIN/CUSTOM_ASSIGNEES with source="toolOutput", toolName, outputPath fields for runtime-resolved assignees.
• ToolOutputRecipient listed first in the recipient Union so payloads carrying source match before falling through to literal variants.

uipath/platform/action_center:

• TaskRecipientType gains Workload and RoundRobin members.
• TaskRecipient gains an optional values list field for the multi-assignee assigneeNamesOrEmails payload.
• _tasks_service updated to forward the new fields when present.

Backwards-compatible: existing payloads without source/values parse and serialize identically.

[Copilot]

Pull request overview

This PR extends the agent escalation-recipient model surface to support V2 HITL escalation recipient flows (including tool-output-resolved recipients) and updates the Action Center task-assignment client models/services to send the new recipient variants and multi-assignee payloads. It also bumps package versions and lockfiles accordingly.

Changes:

• Add new agent escalation recipient types (Workload/RoundRobin/CustomAssignees) plus a ToolOutputRecipient binding for runtime-resolved assignees.
• Extend Action Center task recipient modeling with WORKLOAD/ROUND_ROBIN and support multi-assignee values mapped into assigneeNamesOrEmails.
• Bump uipath and uipath-platform versions and refresh uv.lock metadata.

Reviewed changes

Copilot reviewed 7 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/uipath/src/uipath/agent/models/agent.py	Adds new escalation recipient types and the tool-output recipient binding; adjusts union parsing strategy.
packages/uipath/tests/agent/models/test_agent.py	Adds deserialization tests for new recipient variants and tool-output binding behavior.
packages/uipath-platform/src/uipath/platform/action_center/tasks.py	Adds WORKLOAD/ROUND_ROBIN recipient types and optional values for multi-assignee payloads.
packages/uipath-platform/src/uipath/platform/action_center/_tasks_service.py	Updates assignment request building to emit Workload/RoundRobin criteria and forward multi-assignee values.
packages/uipath-platform/tests/services/test_actions_service.py	Adds tests asserting new assignment payload shapes for Workload/RoundRobin and multi-assignee values.
packages/uipath/pyproject.toml	Bumps uipath version and uipath-platform dependency lower bound.
packages/uipath-platform/pyproject.toml	Bumps uipath-platform version.
packages/uipath/uv.lock	Updates lock metadata and bumps editable package versions.
packages/uipath-platform/uv.lock	Updates lock metadata and bumps editable package version.

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[github-actions]

🚨 Heads up: uipath-integrations cross-tests are FAILING 🚨

Your changes may break one or more integrations in uipath-integrations-python:

• uipath-openai-agents
• uipath-google-adk
• uipath-agent-framework
• uipath-llamaindex
• uipath-pydantic-ai

⚠️ These checks are NOT enforced by branch protection rules. Please review the failures before merging.

🔍 Inspect the failed run →

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

🚨 Heads up: uipath-langchain cross-tests are FAILING 🚨

Your changes may break the uipath-langchain-python integration.

⚠️ These checks are NOT enforced by branch protection rules. Please review the failures before merging.

🔍 Inspect the failed run →

[kunaluipath]

Rebased on main and merge-ready.

• Resolved packages/uipath/pyproject.toml and packages/uipath-platform/pyproject.toml conflicts by taking the newer main versions and bumping forward: uipath==2.11.1, uipath-platform==0.1.68.
• Regenerated both uv.lock files.
• Local tests pass: uipath 1972 ✓, uipath-platform 1239 ✓ (+ 7 skipped).
• All required checks green: commit-lint ✓, lint ✓, test ✓. The 3 failing checks (debug-breakpoints, dev-console, template-agent) are non-required langchain cross-tests that fail due to PyPI lag — once this PR merges and publishes 2.11.1, the companion uipath-langchain PR feat: bind HITL escalation recipients to upstream tool outputs [ACTN-10480] uipath-langchain-python#867 can rebase to pick up the new types and its SonarCloud Quality Gate will pass.