P5: expose per-signal acquisition telemetry

[masarray]

P5 — Per-signal acquisition telemetry

Makes the P4 engine/runtime evidence directly usable by operators without moving IEC 61850 protocol policy into ARSAS.

Final state per selected signal

HybridReportPhysicalValidationTracker now combines ARIEC planning evidence with the actual plan activation result and exposes one final row per signal:

• STATIC REPORT
• DYNAMIC REPORT
• DYNAMIC FAILED → POLLING
• POLLING
• UNCOVERED
• PENDING

Each row retains acquisition kind, RCB, DataSet, dynamic-attempt state, runtime failure reason, explicit polling fallback reason, rollback attempted/succeeded, planning detail, and runtime activation detail.

Diagnostics UI

Adds an automatically refreshed IEC 61850 signal acquisition evidence panel above the existing communication journal. It shows final state, acquisition kind, dynamic attempt, exact reason, cleanup status, RCB, and DataSet per signal. Rows with failed dynamic/polling states are ordered first so exceptions are immediately visible.

Snapshot counters

Adds final runtime counters for static-report signals, dynamic-report signals, dynamic-failed→polling signals, final polling signals, and pending signals while preserving the existing planning/physical-report counters.

Regression coverage

Covers successful static acquisition, successful dynamic acquisition, failed dynamic activation with rollback evidence, explicit engine skip to final polling, and diagnostics-panel projection.

ARIEC remains pinned to P4 PR #86 (2a932e183931eb65c775fe01cf8a47bf8a9af458).

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