feat: replay live PPS telemetry in fixed-point model

soc/software/pps_end_to_end_validation/stability_analysis.py

@@ -600,7 +600,7 @@ def write_report(
         "- Production firmware and this analysis both define `POSTPONE_TOW` "
         "as 180 ms for the current RTL delivery semantics.",
         "",
-        "## Repository hardware data",
+        "## Hardware data used by this synthetic sweep",
         "",
         f"- Real GPS capture: {len(gdop)} GDOP samples and {len(tracked)} "
         "tracked-satellite samples over about five minutes.",
@@ -613,10 +613,12 @@ def write_report(
         f"{_fmt(telemetry.horizontal_rms_m)} / "
         f"{_fmt(telemetry.horizontal_p95_m)} / "
         f"{_fmt(telemetry.horizontal_max_m)} m. No surveyed truth was recorded.",
-        "- No real ABS_SAMPLE, REM_CODE_PHASE, TDOP/HDOP, C/N0, pseudorange "
-        "residual, PPS phase/rate/integrator, temperature, or trusted-edge TIC "
-        "samples exist in the repository. Those columns in the companion CSV "
-        "are explicitly synthetic.",
+        "- The older fusion capture used by this sweep has no ABS_SAMPLE, "
+        "REM_CODE_PHASE, TDOP/HDOP, C/N0, pseudorange residual, PPS phase/rate/"
+        "integrator, temperature, or trusted-edge TIC samples. Those columns "
+        "in the companion CSV are explicitly synthetic. Newer PPS status "
+        "captures are analyzed separately by `hardware_replay.py` and are not "
+        "silently mixed into this historical baseline.",
         "",
         "Synthetic timing uses the board-calibration values already encoded "
         "in the PPS tests: TDOP 1.50, GDOP 2.92, clock sigma 15.87 m "