Add streamed heartbeat/phase logs for long-running EA tasks (and bump version for CI gate)

[Copilot]

Background

• Issue/Motivation: Users reported long silent periods during EA execution, making it impossible to tell whether the agent was actively working, waiting on tools/LLM, or stalled. During review, CI/CD also failed on the repository version gate.
• Root Cause (if bug fix): run_streamed() only emitted logs on discrete stream events (LLM/tool boundaries), so no liveness signal was produced during quiet intervals. Separately, PR version equaled origin/main (0.7.77), failing the CI version bump check.

What Changed

• Liveness signal in streaming loop
  • Added periodic heartbeat log events during stream silence windows.
• Execution phase exposure
  • Heartbeats include phase (planning, waiting_for_llm, processing_response, tool_calling) plus elapsed/idle timing and last tool-call timestamp/name.
• Frontend visibility
  • Added explicit heartbeat rendering in the xterm log view so operators can see activity without waiting for tool/LLM boundaries.
• Targeted regression coverage
  • Added tests for silent-window heartbeat emission and last-tool metadata propagation.
• CI gate fix
  • Bumped project/package version from 0.7.77 to 0.7.78 to satisfy CI’s PR>main version requirement.

on_log("heartbeat", {
    "phase": current_phase,
    "idle_seconds": int(idle_seconds),
    "elapsed_seconds": elapsed_seconds,
    "last_tool_name": last_tool_name,
    "last_tool_call_at": last_tool_called_at,
    "content": f"⏱ heartbeat phase={current_phase} idle={int(idle_seconds)}s elapsed={elapsed_seconds}s",
})

Key Design Decisions

• Emit heartbeat at the same on_log layer as existing task logs to avoid transport/protocol changes.
• Keep heartbeat payload backward-compatible with existing log schema (type + content), while adding structured fields for richer UI use.
• Expose coarse phase states from existing stream event boundaries instead of introducing a new state machine.
• Resolve CI failure with the smallest safe change (version bump only), without touching runtime logic.

Files Changed (annotated)

File	Change
src/onemancompany/agents/base.py	Added silent-period heartbeat emitter in run_streamed(), phase tracking, and last tool-call metadata in heartbeat payload.
frontend/xterm-log.js	Added heartbeat log rendering (beat) for real-time liveness visibility in trace/log panel.
tests/unit/agents/test_base.py	Added focused tests for heartbeat emission during silence and heartbeat inclusion of last tool-call context.
pyproject.toml	Bumped project version from 0.7.77 to 0.7.78 for CI version gate.
package.json	Bumped package version from 0.7.77 to 0.7.78 to keep versions aligned.

Type

• Bug fix
• New feature
• Refactor
• Visualization / Theme
• Talent package
• Documentation
• Other

Review Checklist

Phase 1 — Bug Hunt

• No off-by-one, null-ref, or race conditions introduced
• Error paths tested (what happens when it fails?)
• Edge cases covered (empty input, duplicates, concurrent access)

Phase 2 — Design Principles (docs/design-principles.md)

• Single Source of Truth — No duplicated state; data has one owner, one write function
• Systematic Design — Structural fix, not a patch (would a second similar request need the same code touched?)
• Modular & General-Purpose — New capability addable without modifying existing code
• Complete Data Package — New state is serializable, recoverable, registered, terminable
• No Silent Exceptions — No except: pass; errors logged, CancelledError re-raised
• Registry/Dispatch — No if-elif chains for type dispatch
• Status via transition() — No direct node.status = ... assignment
• Minimal Complexity — No premature abstractions; minimum code for current requirements

Phase 3 — Side Effects

• No unintended behavioral changes to existing features
• Serialization/persistence formats are backward-compatible (or migration provided)
• No new circular imports introduced

Test Plan

• Unit tests pass (.venv/bin/python -m pytest tests/unit/ -x)
• Compilation check (.venv/bin/python -c "from onemancompany.api.routes import router; print('OK')")
• Frontend syntax check (node -c frontend/app.js)
• New tests written for new/changed behavior
• Manual testing (describe below)

Manual Test Steps

1. Run a long/silent EA task and observe the live log stream.
2. Confirm heartbeat entries appear during silence windows with phase + timing metadata.
3. Confirm heartbeat continues until next tool/LLM event and does not break existing tool/result rendering.
4. Confirm CI version gate passes with PR version 0.7.78 > main.

Screenshots

[zhengxuyu]

@copilot ci/cd没过

[Copilot]

@copilot ci/cd没过

已定位并修复：CI 失败点是版本门禁（PR version 必须大于 main）。我已把 pyproject.toml 和 package.json 从 0.7.77 提升到 0.7.78，修复提交是 635f0c9。请看这次提交触发的 CI 结果。