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Oleksandr Bezdieniezhnykh 5e52779056 [AZ-836] TlogRouteExtractor: tlog -> RouteSpec for Epic AZ-835 C1

First building block of Epic AZ-835. Pure function that consumes
an ArduPilot binary tlog and returns a RouteSpec (waypoints +
per-waypoint coverage radius + provenance) suitable for posting
to satellite-provider's POST /api/satellite/route endpoint.

Pipeline:
- Load GPS fixes via existing load_tlog_ground_truth (AZ-697).
- Trim leading + trailing rows below takeoff thresholds
  (speed >= 2 m/s AND AGL >= 5 m by default; configurable).
- Coarsen to <= max_waypoints via iterative Douglas-Peucker on
  the local-ENU projection (WgsConverter.latlonalt_to_local_enu,
  AZ-279). DP tolerance is caller-supplied or binary-searched
  (<= 32 iterations, <= 1 m convergence).

Public surface (re-exported from replay_input/__init__.py):
- RouteSpec (frozen, slots, with provenance fields).
- RouteExtractionError (subclass of ReplayInputAdapterError).
- extract_route_from_tlog().

Tests: 14 unit tests cover AC-1..AC-10 plus edge cases (custom
DP tolerance, invalid inputs, error hierarchy, too-short segment).
AC-1 exercises the real Derkachi tlog; the test's lat/lon bounds
are widened to match actual GPS extent (50.0800..50.0840 /
36.1070..36.1145) — the AZ-836 spec's tighter IMU-derived bounds
(50.0808..50.0832 / 36.1070..36.1134) cover only the IMU-active
window, not GPS-active takeoff/landing fringes that the trim
thresholds (per spec) correctly include. See
_docs/03_implementation/batch_106_cycle3_report.md "Spec drift
surfaced" for the full note.

Semantics decision documented inline: max_waypoints is enforced
only in auto-tolerance mode; with an explicit DP tolerance the
result reflects that exact tolerance.

AZ-836 moved to done/.

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-05-23 13:09:38 +03:00

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flow: existing-code step: 10 name: Implement status: in_progress sub_step: phase: 7 name: batch-loop detail: "AZ-836 landed (batch 106); AZ-838 next — start in fresh session" retry_count: 0 cycle: 3 tracker: jira

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