chore(central-ripout 2d-i): relocate the fire engine + renderer out of central/ (#164)

Moves the last two live files out of the retired-Central folder. central/ is
now EMPTY and deleted entirely (incl. __init__.py).

- fire-fusion engine (ingest_hotspot_pixel + the growth/cluster/spotting
  engine) → env/fire_fusion.py, next to its sole consumer env/firms.py.
- wildfire text renderer (_render + its live helpers) → env/fire_render.py.

THE COUPLING RESOLVED: firms_handler._handle_pass_boundary had a LAZY import
inside a function body — `from meshai.central.wfigs_handler import _render` —
sitting on the live FIRMS fire-growth path. It is now a normal top-of-file
import (`from meshai.env.fire_render import _render`), visible and greppable.

PURE MOVE — no behavior change:
- The parity oracle (test_fire_refactor.py) PASSES UNCHANGED (only its import
  paths updated) — proving the fire wire output is byte-for-byte identical
  before and after. Fire alerts say exactly what they said.
- handle_firms / handle_wfigs (dead entrypoints, only caller was the deleted
  consumer.py) were KEPT and moved rather than dropped — the wording-cleanup
  PR removes them deliberately. "When unsure, keep."
- fire_render.py's geo-helper imports still point at central_normalizer — that
  file's split is a SEPARATE PR; carried the imports along, did not touch it.

Consumers + test import paths rewired. Full suite: 2059 passed, 0 failed.

Co-authored-by: Matt Johnson <mj@k7zvx.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

work/meshai/central/__init__.py

@@ -1,8 +0,0 @@
-"""Central connector package (v0.4) — historically consumed Central's NATS
-JetStream firehose and normalized it into meshai pipeline Events. The NATS
-consumer is retired (Central is gone); this package now only holds the
-split-file modules still used by the native adapter paths (firms_handler,
-wfigs_handler _render). The satellite pieces (satpass_handler, tle_handler,
-pass_predictor) have moved to meshai.env.satellite, and the gauge-site
-lookups have moved to meshai.env.gauge_sites — they're feed-adapter support
-code, not consumer leftovers."""

work/meshai/env/fire_fusion.py

@@ -1,5 +1,15 @@
 """v0.7-fire-tracker-3 FIRMS handler -- storage + attribution + cluster + growth/halt/spotting.
 
+Relocated from `meshai.central.firms_handler` during the Central ripout
+(central/ handler retirement, chore/ripout-2d). ``ingest_hotspot_pixel`` is
+the LIVE fire-fusion engine with one consumer: the native FIRMS adapter
+(`meshai.env.firms` -> `_run_fusion`). ``handle_firms`` (the Central
+NATS-envelope entrypoint) has no live production caller -- Central's
+consumer that drove it is gone -- but it remains the parity-tested legacy
+contract (see `tests/test_firms_handler.py`, `tests/test_firms_refactor.py`,
+`tests/test_fire_tracker_phase1/2/3.py`) -- kept verbatim, not deleted, per
+that coverage.
+
 Pre-v0.6-1 the v0.5.13 default-deny gate at consumer._normalize() silently
 dropped every `central.fire.hotspot.>` envelope because no per-adapter handler
 existed (audit doc v0.6-phase1-audit.md finding #2). The `firms_pixels`
@@ -70,6 +80,7 @@ from datetime import datetime, timezone
 from typing import Any, Optional
 
 from meshai.persistence import get_db
+from meshai.env.fire_render import _render
 
 logger = logging.getLogger(__name__)
 
@@ -919,7 +930,6 @@ def _handle_pass_boundary(conn, *, irwin_id, pass_id, lat, lon,
     if fire is None:
         return None
 
-    from meshai.central.wfigs_handler import _render
     movement = {"direction": drift_direction, "speed_mph": drift_mi_per_hour or 0.0}
     normalized = dict(fire)
     normalized["irwin_id"] = irwin_id
@@ -948,7 +958,14 @@ def _handle_pass_boundary(conn, *, irwin_id, pass_id, lat, lon,
 
 def _render_growth_wire(*, incident_name, direction, speed_mph,
                           lat, lon):
-    """Per design doc section 4 + Phase 2 spec item 3."""
+    """Per design doc section 4 + Phase 2 spec item 3.
+
+    NOTE: unreferenced (verified via repo-wide rg during the chore/ripout-2d
+    relocation -- zero callers in source or tests). `_handle_pass_boundary`
+    renders growth wires via the WFIGS `_render` instead. Left in place
+    (moved verbatim, not deleted) since dropping dead code is out of scope
+    for this pure-move PR.
+    """
     near_part = ""
     try:
         from meshai.central_normalizer import nearest_town

work/meshai/env/fire_render.py

@@ -1,5 +1,15 @@
 """WFIGS handler: persistence-backed change-detection + wire renderer.
 
+Relocated from `meshai.central.wfigs_handler` during the Central ripout
+(central/ handler retirement, chore/ripout-2d). ``handle_wfigs`` has no live
+production caller (Central's NATS consumer that drove it is gone), but it
+remains the parity-tested legacy contract for the WFIGS wildfire wire format
+(see `tests/test_fire_refactor.py`, `tests/test_wfigs_handler.py`) -- kept
+verbatim, not deleted, per that oracle. ``_render`` IS live: it is imported
+by `meshai.env.fire_fusion._handle_pass_boundary` on the FIRMS growth path
+(`env/firms.py` -> `ingest_hotspot_pixel` -> ... -> `_handle_pass_boundary`
+-> `_render`) to render the `wildfire_growth` wire.
+
 v0.5.8b refactor: New: vs Update: decision now keys on `last_broadcast_at`,
 not on row existence. Cold-start scenarios where the dispatcher drops the
 broadcast (cold-start grace, stale filter, cooldown, dedup) leave the fires
@@ -469,7 +479,7 @@ def _render(n: dict, *, prefix: str = "",
     lines: list[str] = []
 
     # Line 1: header
-    lines.append(f"🔥 {name} \u2014 {prefix}")
+    lines.append(f"🔥 {name} — {prefix}")
 
     # Line 2: size / containment with delta (plain text -- no bold markdown).
     acres_str = f"{int(acres):,} ac" if acres is not None else "size unknown"

work/meshai/env/firms.py

@@ -138,7 +138,7 @@ class FIRMSAdapter:
         new_events = self._parse_csv(csv_data)
 
         # Feed every fetched pixel into the SHARED source-agnostic fusion engine
-        # (central.firms_handler.ingest_hotspot_pixel): attribution + growth /
+        # (env.fire_fusion.ingest_hotspot_pixel): attribution + growth /
         # spotting / halt. DB-level dedup (firms_pixels unique key) makes this
         # idempotent across ticks, so re-fetched pixels never double-count.
         # NEVER broadcasts raw hotspots -- only the fusion wires it returns.
@@ -422,14 +422,14 @@ class FIRMSAdapter:
         engine and collect the fire-fusion broadcasts.
 
         Every parsed pixel is mapped to the canonical FIRMS schema and passed to
-        ``central.firms_handler.ingest_hotspot_pixel`` -- the exact same engine
+        ``env.fire_fusion.ingest_hotspot_pixel`` -- the exact same engine
         the Central NATS handler drives. The engine INSERTs the pixel, runs
         attribution, and runs the growth / spotting / halt fusion; it returns
         ONLY fusion wires (never a raw-hotspot / cluster broadcast). DB-level
         dedup makes re-fetched pixels no-ops, so nothing double-counts.
         """
         try:
-            from meshai.central.firms_handler import (
+            from meshai.env.fire_fusion import (
                 ingest_hotspot_pixel, _parse_acq_epoch,
             )
         except Exception:

work/tests/test_clock_seam.py

@@ -10,7 +10,7 @@ import time
 import pytest
 
 import meshai.notifications.clock as clock_mod
-import meshai.central.wfigs_handler as wfigs_handler
+import meshai.env.fire_render as wfigs_handler
 
 
 _FROZEN_TS = 1_700_000_000.0

work/tests/test_fire_age_gate.py

@@ -1,6 +1,6 @@
 """Step 3 fire age-gate tests (Step 5 verification, age-gate part).
 
-Targets `meshai.central.wfigs_handler._fire_too_old_to_announce` and the
+Targets `meshai.env.fire_render._fire_too_old_to_announce` and the
 handler's "New"-path suppression behaviour.
 
 The gate exists because MeshAI broadcast a 6-week-old, already-closed fire
@@ -21,7 +21,7 @@ import time
 
 import pytest
 
-from meshai.central.wfigs_handler import _fire_too_old_to_announce
+from meshai.env.fire_render import _fire_too_old_to_announce
 
 
 _14D = 14 * 86400
@@ -131,7 +131,7 @@ def test_handler_new_path_suppresses_old_fire():
     """Case (i): a brand-new fire whose declared_at is ~45d old is INSERTed
     but the 'New' broadcast is suppressed (wire is None), and the New-path
     category tag is NOT applied."""
-    from meshai.central.wfigs_handler import handle_wfigs
+    from meshai.env.fire_render import handle_wfigs
     from meshai.persistence import get_db
 
     now = int(time.time())
@@ -154,7 +154,7 @@ def test_handler_new_path_suppresses_old_fire():
 def test_handler_new_path_announces_recent_fire():
     """Case (i): a recent fire (~5d) DOES broadcast 'New' and tags
     wildfire_declared."""
-    from meshai.central.wfigs_handler import handle_wfigs
+    from meshai.env.fire_render import handle_wfigs
 
     now = int(time.time())
     declared = now - _5D
@@ -171,7 +171,7 @@ def test_handler_update_path_still_emits_for_old_fire():
     """An already-broadcast OLD fire that grows acreage still emits an
     'Update' (Case (iii) is NOT gated -- genuine old-but-active fires keep
     getting containment/acreage updates)."""
-    from meshai.central.wfigs_handler import handle_wfigs
+    from meshai.env.fire_render import handle_wfigs
     from meshai.persistence import get_db
 
     now = int(time.time())

work/tests/test_fire_refactor.py

@@ -23,7 +23,7 @@ import pytest
 
 from meshai import central_normalizer as cn
 from meshai.notifications.formatters._budget import budget_for
-from meshai.central.wfigs_handler import (
+from meshai.env.fire_render import (
     _build_canonical,
     _render as _wfigs_render,
     handle_wfigs,
@@ -55,7 +55,7 @@ def mem_db(monkeypatch, tmp_path):
     except Exception:
         pass
     try:
-        from meshai.central import wfigs_handler as _wh
+        from meshai.env import fire_render as _wh
         _wh._last_cleanup = 0
     except Exception:
         pass

work/tests/test_fire_tracker_phase1.py

@@ -81,7 +81,7 @@ def _envelope(*, lat, lon, acq_date="2026-06-06", acq_time="1200",
 
 
 def test_pixel_within_radius_attributes_to_fire():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     # Cache Peak Fire stub @ 42.118, -113.643.
@@ -120,7 +120,7 @@ def test_pixel_within_radius_attributes_to_fire():
 def test_centroid_recomputes_as_median_across_passes():
     """A second attributed pixel updates the centroid to the median, not
     just the latest pixel's coords."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     _seed_fire(irwin_id="ID-TEST-002",
@@ -157,7 +157,7 @@ def test_centroid_recomputes_as_median_across_passes():
 
 
 def test_pixel_outside_radius_stays_unattributed():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     _seed_fire(irwin_id="ID-TEST-003",
@@ -196,7 +196,7 @@ def _hhmm(h, m=0):
 
 
 def test_three_unattributed_pixels_fire_cluster_once():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     # No fires seeded -- everything is unattributed.
@@ -235,7 +235,7 @@ def test_three_unattributed_pixels_fire_cluster_once():
 
 
 def test_fourth_pixel_in_same_cluster_does_not_refire():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     base_lat, base_lon = 43.500, -114.500
@@ -279,7 +279,7 @@ def test_fifth_pixel_after_time_window_can_form_new_cluster():
     no nearby unstamped pixels to count, so it stays silent -- but if
     we then ingest TWO more nearby pixels (also outside the original
     window), we should fire a NEW cluster."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
 
     base_lat, base_lon = 43.500, -114.500
     # First cluster at 12:00..12:20 -> fires + stamps all 3.
@@ -321,7 +321,7 @@ def test_fifth_pixel_after_time_window_can_form_new_cluster():
 
 
 def test_wfigs_first_sight_tags_wildfire_declared():
-    from meshai.central.wfigs_handler import handle_wfigs
+    from meshai.env.fire_render import handle_wfigs
 
     normalized = {
         "_kind": "wfigs_incident",
@@ -351,7 +351,7 @@ def test_wfigs_first_sight_tags_wildfire_declared():
 def test_wfigs_update_does_not_retag_wildfire_declared():
     """After a row exists AND has been broadcast, an acres-grew Update
     must NOT carry the wildfire_declared category."""
-    from meshai.central.wfigs_handler import handle_wfigs
+    from meshai.env.fire_render import handle_wfigs
     from meshai.persistence import get_db
 
     # Pre-existing row that has already been broadcast.

work/tests/test_fire_tracker_phase2.py

@@ -73,7 +73,7 @@ def _envelope(*, lat, lon, acq_date="2026-06-06", acq_time="1200",
 def test_two_pass_drift_emits_growth_with_direction_and_speed():
     """Pass 1 (N20 bucket A), pass 2 (N20 bucket B, ~6h later, centroid
     1.0 mi N of pass 1). Drift should be ~1.0 mi N, broadcast must fire."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     _seed_fire(irwin_id="ID-GROWTH-001",
@@ -139,7 +139,7 @@ def test_two_pass_drift_emits_growth_with_direction_and_speed():
 def test_drift_below_threshold_does_not_emit_growth():
     """0.3 mi drift between consecutive passes -- below the 0.5 mi
     default -- must NOT broadcast wildfire_growth."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     _seed_fire(irwin_id="ID-DRIFT-001",
@@ -181,7 +181,7 @@ def test_drift_below_threshold_does_not_emit_growth():
 def test_halt_detector_fires_once_after_12h_idle():
     """Fire with last_pass_at 14h ago + no new pixels in that fire
     triggers halt on the next FIRMS pixel arrival (for any fire)."""
-    from meshai.central.firms_handler import handle_firms, _maybe_emit_halt
+    from meshai.env.fire_fusion import handle_firms, _maybe_emit_halt
     from meshai.persistence import get_db
 
     now_epoch = 1780768800   # 2026-06-06 18:00 UTC
@@ -214,7 +214,7 @@ def test_halt_detector_fires_once_after_12h_idle():
 
 def test_halt_detector_no_second_broadcast_for_same_fire():
     """Once halt_broadcast_at is stamped, the detector skips that fire."""
-    from meshai.central.firms_handler import _maybe_emit_halt
+    from meshai.env.fire_fusion import _maybe_emit_halt
     from meshai.persistence import get_db
 
     now_epoch = 1780768800
@@ -238,7 +238,7 @@ def test_halt_eligibility_returns_after_new_pass_arrives():
     """A previously halted fire that receives a new pixel becomes eligible
     for halt again if it goes idle a second time. The detector filter is
     halt_broadcast_at IS NULL OR halt_broadcast_at < last_pass_at."""
-    from meshai.central.firms_handler import _maybe_emit_halt
+    from meshai.env.fire_fusion import _maybe_emit_halt
     from meshai.persistence import get_db
 
     now_epoch = 1780768800
@@ -267,7 +267,7 @@ def test_halt_eligibility_returns_after_new_pass_arrives():
 
 def test_bearing_and_direction_round_trip():
     """Bearing helper + 8-way mapping cover all cardinals/intercardinals."""
-    from meshai.central.firms_handler import _bearing, _direction_8
+    from meshai.env.fire_fusion import _bearing, _direction_8
     # Source point.
     s_lat, s_lon = 42.0, -114.0
     # Each cardinal/intercardinal direction we test by walking ~1 mi.
@@ -289,7 +289,7 @@ def test_bearing_and_direction_round_trip():
 
 
 def test_direction_8_boundary_cases():
-    from meshai.central.firms_handler import _direction_8
+    from meshai.env.fire_fusion import _direction_8
     # Bearings on the boundary -- check the +22.5 offset rounds correctly.
     assert _direction_8(0.0) == "N"
     assert _direction_8(22.4) == "N"
@@ -339,7 +339,7 @@ def test_pass_row_aggregates_match_member_pixels():
     """5 pixels attributed in the same pass yield ONE fire_passes row
     with pixel_count=5, total_frp = sum, pass_started_at = min(acq),
     pass_ended_at = max(acq), centroid = median."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     _seed_fire(irwin_id="ID-AGG-001",

work/tests/test_fire_tracker_phase3.py

@@ -71,7 +71,7 @@ def test_pass_close_stamps_perimeter_geojson():
     """Pass A: 6 pixels in a hex around the seeded center. First pixel
     of pass B triggers boundary close -> perimeter_geojson written for
     pass A as a closed GeoJSON Polygon."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     center_lat, center_lon = 42.500, -114.500
@@ -121,7 +121,7 @@ def _seed_pass_a_hex_then_close(*, irwin_id, center_lat, center_lon,
                                   start_now=1780747200):
     """Helper: seed a fire + 6 hex-vertex pass A pixels. Caller follows up
     with a pass B pixel to trigger boundary close + perimeter write."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     _seed_fire(irwin_id=irwin_id, lat=center_lat, lon=center_lon,
                  name=irwin_id)
     for i in range(6):
@@ -138,7 +138,7 @@ def _seed_pass_a_hex_then_close(*, irwin_id, center_lat, center_lon,
 def test_pixel_2mi_ne_of_perimeter_emits_spotting():
     """Pass B pixel 2 mi NE of pass A's perimeter centroid fires
     wildfire_spotting with the correct distance + direction."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     from meshai.persistence import get_db
 
     center_lat, center_lon = 43.000, -115.000
@@ -188,7 +188,7 @@ def test_pixel_2mi_ne_of_perimeter_emits_spotting():
 
 
 def test_pixel_inside_perimeter_no_spotting():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
 
     center_lat, center_lon = 43.500, -114.500
     _seed_pass_a_hex_then_close(irwin_id="ID-SPOT-003",
@@ -223,7 +223,7 @@ def test_pixel_inside_perimeter_no_spotting():
 
 
 def test_second_spotting_within_cooldown_suppressed():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
 
     center_lat, center_lon = 44.000, -116.000
     _seed_pass_a_hex_then_close(irwin_id="ID-SPOT-004",
@@ -257,7 +257,7 @@ def test_second_spotting_within_cooldown_suppressed():
 
 
 def test_spotting_refires_after_cooldown():
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
 
     center_lat, center_lon = 44.500, -116.500
     _seed_pass_a_hex_then_close(irwin_id="ID-SPOT-005",
@@ -286,7 +286,7 @@ def test_spotting_refires_after_cooldown():
 
 
 def test_convex_hull_basic():
-    from meshai.central.firms_handler import _convex_hull
+    from meshai.env.fire_fusion import _convex_hull
     pts = [(0, 0), (1, 0), (1, 1), (0, 1), (0.5, 0.5)]
     hull = _convex_hull(pts)
     assert (0.5, 0.5) not in hull
@@ -294,7 +294,7 @@ def test_convex_hull_basic():
 
 
 def test_point_in_polygon_basic():
-    from meshai.central.firms_handler import _point_in_polygon
+    from meshai.env.fire_fusion import _point_in_polygon
     square = [(0, 0), (0, 10), (10, 10), (10, 0)]  # (lat, lon)
     assert _point_in_polygon((5, 5), square) is True
     assert _point_in_polygon((15, 5), square) is False
@@ -303,7 +303,7 @@ def test_point_in_polygon_basic():
 
 def test_geojson_round_trip_via_hull():
     """Hull -> GeoJSON -> parse -> ring shape sane."""
-    from meshai.central.firms_handler import _convex_hull, _hull_to_geojson
+    from meshai.env.fire_fusion import _convex_hull, _hull_to_geojson
     hull = _convex_hull([(0, 0), (1, 0), (0, 1), (1, 1)])
     raw = _hull_to_geojson(hull)
     parsed = json.loads(raw)

work/tests/test_firms_cluster_f3.py

@@ -73,7 +73,7 @@ def _pixel(*, lat, lon, acq_date="2026-06-06", acq_time="1200",
 
 
 def _feed(pixel, *, now, seed=False):
-    from meshai.central.firms_handler import ingest_hotspot_pixel
+    from meshai.env.fire_fusion import ingest_hotspot_pixel
     return ingest_hotspot_pixel(pixel, now=now, seed=seed)
 
 

work/tests/test_firms_handler.py

@@ -10,8 +10,8 @@ Envelope shape sourced from firms-investigation.md sampling (250 envelopes
 """
 import pytest
 
-from meshai.central import firms_handler
-from meshai.central.firms_handler import handle_firms
+from meshai.env import fire_fusion as firms_handler
+from meshai.env.fire_fusion import handle_firms
 from meshai.persistence import close_thread_connection, init_db
 from meshai.persistence import db as persistence_db
 

work/tests/test_firms_native_fusion.py

@@ -100,7 +100,7 @@ def _offset_mi(lat, lon, north_mi, east_mi):
 
 
 def _feed(pixel, *, now):
-    from meshai.central.firms_handler import ingest_hotspot_pixel
+    from meshai.env.fire_fusion import ingest_hotspot_pixel
     return ingest_hotspot_pixel(pixel, now=now)
 
 
@@ -407,7 +407,7 @@ _SUBJECT = "central.fire.hotspot.N20.high.us.id"
 
 class TestCentralPathUnchanged:
     def test_storage_only_pixel_still_stores_and_returns_none(self):
-        from meshai.central.firms_handler import handle_firms
+        from meshai.env.fire_fusion import handle_firms
         from meshai.persistence import get_db
         env = _envelope(lat=42.19664, lon=-113.70981)
         out = handle_firms(env, subject=_SUBJECT, data={}, now=1780660000)
@@ -427,7 +427,7 @@ class TestCentralPathUnchanged:
     def test_central_growth_wire_and_stamps_identical(self):
         """The extracted core produces the SAME growth wire/stamps on the
         Central envelope path that the inline handler did."""
-        from meshai.central.firms_handler import handle_firms
+        from meshai.env.fire_fusion import handle_firms
         center_lat, center_lon = 42.0, -114.0
         _seed_fire(irwin_id="ID-CG", lat=center_lat, lon=center_lon,
                    name="Pine Gulch")

work/tests/test_firms_refactor.py

@@ -119,7 +119,7 @@ _SUBJECT = "central.fire.hotspot.N20.high.us.id"
 def _drive_two_pass_growth(irwin_id, center_lat, center_lon):
     """Seed a fire + pass A (5 px) + first pass-B pixel 1 mi N. Returns the
     (wire, data) from the boundary pixel that fires wildfire_growth."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     _seed_fire(irwin_id=irwin_id, lat=center_lat, lon=center_lon, name="Pine Gulch")
     for i in range(5):
         env = _envelope(lat=center_lat + 0.0001 * i,
@@ -136,7 +136,7 @@ def _drive_two_pass_growth(irwin_id, center_lat, center_lon):
 
 def _seed_pass_a_hex_then_close(irwin_id, center_lat, center_lon,
                                 start_now=1780747200):
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     _seed_fire(irwin_id=irwin_id, lat=center_lat, lon=center_lon, name=irwin_id)
     for i in range(6):
         angle = i * math.pi / 3
@@ -156,7 +156,7 @@ def _offset_mi(lat, lon, north_mi, east_mi):
 def _drive_spotting(irwin_id, center_lat, center_lon, now=1780768800):
     """Seed hex pass A + closed perimeter, then a pass-B pixel 2 mi NE that
     fires wildfire_spotting. Returns (wire, data)."""
-    from meshai.central.firms_handler import handle_firms
+    from meshai.env.fire_fusion import handle_firms
     _seed_pass_a_hex_then_close(irwin_id, center_lat, center_lon)
     sp_lat, sp_lon = _offset_mi(center_lat, center_lon,
                                 north_mi=2.0 / math.sqrt(2),
@@ -354,7 +354,7 @@ class TestFormatterGolden:
             _clear_cache()
 
     def test_halt_wire_golden(self, monkeypatch):
-        from meshai.central.firms_handler import _maybe_emit_halt
+        from meshai.env.fire_fusion import _maybe_emit_halt
         from meshai.persistence import get_db
         _cutover(monkeypatch, "wildfire_halted")
         try:
@@ -416,7 +416,7 @@ class TestNotCutoverLegacyVerbatim:
         assert "_on_broadcast_committed" not in data
 
     def test_halt_eager_latch_stamped(self, _no_cutover):
-        from meshai.central.firms_handler import _maybe_emit_halt
+        from meshai.env.fire_fusion import _maybe_emit_halt
         from meshai.persistence import get_db
         now = 1780768800
         _seed_stale_fire("ID-HN", now_epoch=now, idle_hours=14)
@@ -439,7 +439,7 @@ class TestNotCutoverLegacyVerbatim:
 
 class TestClusterBelowThreshold:
     def test_maybe_emit_cluster_below_threshold_returns_none(self):
-        from meshai.central.firms_handler import _maybe_emit_cluster
+        from meshai.env.fire_fusion import _maybe_emit_cluster
         from meshai.persistence import get_db
         data = {}
         # No pixels in firms_pixels -> the cluster query finds < min_pixels

work/tests/test_import_smoke.py

@@ -3,6 +3,13 @@ must be importable without error after the budget shim refactor.
 
 This guards against a broken import chain (e.g. circular imports or a bad
 re-export in the shim) that would silently break all handlers.
+
+chore/ripout-2d: the last two central/ handlers (firms_handler.py,
+wfigs_handler.py) relocated to meshai/env/fire_fusion.py + fire_render.py
+(central/ has no *_handler.py left -- the fusion engine's only consumer is
+the native env/firms.py adapter). The glob below now also covers those two
+explicitly so this guard still exercises the relocated live import chain;
+it keeps globbing central/ too in case a future handler lands back there.
 """
 
 import glob
@@ -11,17 +18,16 @@ import os
 
 
 def _handler_modules():
-    """Collect meshai.central.*_handler module names by globbing the source tree."""
-    pattern = os.path.join(
+    """Collect handler-ish module names: meshai.central.*_handler (glob) +
+    the fire-fusion modules relocated out of central/ during the ripout."""
+    central_pattern = os.path.join(
         os.path.dirname(__file__),
         "..", "meshai", "central", "*_handler.py",
     )
-    paths = sorted(glob.glob(pattern))
-    assert paths, "No *_handler.py files found — check the glob path"
-    modules = []
-    for p in paths:
-        name = os.path.basename(p)[:-3]  # strip .py
-        modules.append(f"meshai.central.{name}")
+    central_paths = sorted(glob.glob(central_pattern))
+    modules = [f"meshai.central.{os.path.basename(p)[:-3]}" for p in central_paths]
+    modules += ["meshai.env.fire_fusion", "meshai.env.fire_render"]
+    assert modules, "No handler-ish modules found — check the glob path"
     return modules
 
 

work/tests/test_tail_followups.py

@@ -279,7 +279,7 @@ def test_fires_has_tombstoned_at_column():
 
 def test_wfigs_tombstone_stamps_column():
     """A tombstone envelope sets fires.tombstoned_at."""
-    from meshai.central.wfigs_handler import handle_wfigs
+    from meshai.env.fire_render import handle_wfigs
     conn = get_db()
     # Seed an active fire row.
     irwin = "TOMB-1"

work/tests/test_tombstone_broadcast.py

@@ -23,7 +23,7 @@ import time
 
 import pytest
 
-from meshai.central.wfigs_handler import handle_wfigs
+from meshai.env.fire_render import handle_wfigs
 from meshai.notifications.env_reporter import EnvReporter
 from meshai.persistence import get_db
 

work/tests/test_v064_guard_commit.py

@@ -169,7 +169,7 @@ def test_dedup_suffix_lets_updates_pass_and_repeats_dedup():
 
 
 def test_wfigs_handler_stamps_dedup_suffix():
-    from meshai.central.wfigs_handler import _attach_commit_handles
+    from meshai.env.fire_render import _attach_commit_handles
     data = {}
     _attach_commit_handles(data, irwin_id="{X}", acres=42.0,
                             contained_pct=15, event_log_row_id=None)

work/tests/test_wfigs_handler.py

@@ -20,7 +20,7 @@ import time
 import pytest
 
 from meshai import central_normalizer as cn
-from meshai.central.wfigs_handler import (
+from meshai.env.fire_render import (
     WFIGS_BROADCAST_COOLDOWN_S,
     handle_wfigs,
     _render as _wfigs_render,
@@ -47,7 +47,7 @@ def mem_db(monkeypatch, tmp_path):
         pass
     # Reset the stale-fire cleanup throttle so it runs deterministically.
     try:
-        from meshai.central import wfigs_handler as _wh
+        from meshai.env import fire_render as _wh
         _wh._last_cleanup = 0
     except Exception:
         pass