[GH] (texera/hackathon/agent-library-time-machine): Workflow run "Lint PR" failed!

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The GitHub Actions job "Lint PR" on texera.git/hackathon/agent-library-time-machine has failed.
Run started by GitHub user EmilySun621 (triggered by EmilySun621).

Head commit for run:
f64bd662b9beed4c727c88904abd828da0e91d0c / Emily Sun <em...@Emilys-MacBook-Pro.local>
feat: custom agents, time machine, and per-agent model selection

This bundles the feature work that built up on this branch:

- Custom agents: dashboard CRUD page and editor dialog (48px icon tile,
  chip-style guardrails, model selector). Each custom agent now carries a
  LiteLLM model_name (Opus 4.7 / Haiku 4.5) that is passed through to the
  agent-service so different agents can use different models.

- Conversation history is scoped per (workflowId, agentId): switching
  agent or workflow yields a different conversation list. localStorage
  key: texera.workflowConversations.v1.{workflowId}.{agentId}.

- Time machine: workflow snapshot list, revert, and agent-tagged
  checkpoints. New workflow-history-tool in agent-service backs the
  "undo my last change" flow; amber gains a WorkflowSnapshotResource;
  sql/updates/23.sql adds the snapshot table.

- Operator-aware custom-agent prompts: the system prompt now injects the
  full operator catalog with a "prefer built-in operators over Python
  UDFs" rule, sourced from WorkflowSystemMetadata at request time.

- LiteLLM: added the claude-opus-4.7 entry alongside claude-haiku-4.5
  and gpt-5-mini in bin/litellm-config.yaml.

- Agent panel rewritten around the (conversation list / chat) two-view
  model with subscription-managed list reloads and per-step persistence.

Co-Authored-By: Claude Opus 4.7 (1M context) <no...@anthropic.com>

Report URL: https://github.com/apache/texera/actions/runs/25953570074

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