Remove dead code: unused imports, functions, classes

Verified via cross-reference (grep + framework-entry-point check) before
removal; kept Flask/FastAPI route handlers, click commands, and inherited
base-class slots that vulture flags as "unused".

Removed:
- Dead functions/classes: bounding_polygons get_* helpers (6),
  geo_utils utm/lonlat converters (+ orphaned PROJECTIONS), converter
  UnitConverter Protocol, logger Loggable, strategies OutputStrategy,
  source BaseContainerSource/BaseFileSource, transformer convert_units
  (deprecated), unifier get_sources_in_polygon/generate_site_bounds/
  *_unification_test/get_datastream(s) + stale commented call block.
- orchestration/assets/wells.py (build_wells_asset, imported nowhere).
- 63 unused imports across backend/frontend/orchestration (autoflake).

flake8 (E9,F63,F7,F82) + mypy clean; 427 tests collect with no import
errors; local persister tests pass. ckan connector appears entirely
unwired (config uses st2 instead) — flagged separately, not removed here.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: jirhiker

backend/bounding_polygons.py

@@ -15,113 +15,14 @@
 # ===============================================================================
 import json
 import os
-from pprint import pprint
 
 import click
 import httpx
-from shapely import Polygon, box
 from shapely.geometry import shape
 
 from backend.geo_utils import transform_srid, SRID_WGS84, SRID_UTM_ZONE_13N
 
 
-# polygon retrivial functions
-# multiple polygons
-def get_congressional_district_boundaries(state, district):
-    pass
-
-
-def get_tribal_boundaries(state=None):
-    state, statefp = _get_statefp(state)
-
-    # use the processes service to get all tribal boundaries that intersect the state
-    def func():
-        payload = {
-            "inputs": {
-                "collection": f"aiannh",
-                "url": f"https://geoconnex.us/ref/states/{statefp}",
-            }
-        }
-        resp = httpx.post(
-            "https://reference.geoconnex.us/processes/intersector/execution",
-            json=payload,
-        )
-        return resp.json()
-
-    obj = _get_cached_object(f"{state}.aiannh", f"{state} AIANNH", func)
-
-    return obj
-
-
-def get_state_hucs_boundaries(state=None, level=8):
-    state, statefp = _get_statefp(state)
-
-    # use the processes service to get all hucs from this level that intersect the state of NM
-    def func():
-        payload = {
-            "inputs": {
-                "collection": f"hu{level:02n}",
-                "url": f"https://geoconnex.us/ref/states/{statefp}",
-            }
-        }
-        resp = httpx.post(
-            "https://reference.geoconnex.us/processes/intersector/execution",
-            json=payload,
-        )
-        return resp.json()
-
-    obj = _get_cached_object(f"{state}.hucs.{level}", f"{state} HU{level:02n}", func)
-
-    return obj
-
-
-def get_state_pwss_boundaries(state=None):
-    state, statefp = _get_statefp(state)
-    obj = _get_cached_object(
-        f"{state}.pws",
-        f"{state} PWSs",
-        f"https://reference.geoconnex.us/collections/pws/items?f=json&state_code={state}",
-    )
-
-    return obj
-
-
-# single polygons
-
-
-def get_pws_polygon(pwsid, as_wkt=True):
-    obj = _get_cached_object(
-        pwsid,
-        pwsid,
-        f"https://reference.geoconnex.us/collections/pws/items/{pwsid}?f=json",
-    )
-    return _make_shape(obj, as_wkt)
-
-
-def get_huc_polygon(huc, as_wkt=True):
-    if len(huc) == 2:
-        collection = "hu02"
-    elif len(huc) == 4:
-        collection = "hu04"
-    elif len(huc) == 6:
-        collection = "hu06"
-    elif len(huc) == 8:
-        collection = "hu08"
-    elif len(huc) == 10:
-        collection = "hu10"
-    else:
-        _warning(f"Invalid HUC {huc}. length must be 2, 4, 6, 8, or 10")
-        return
-
-    obj = _get_cached_object(
-        huc,
-        huc,
-        f"https://reference.geoconnex.us/collections/{collection}/items/{huc}?f=json",
-    )
-
-    return _make_shape(obj, as_wkt)
-
-
 def get_county_polygon(name, as_wkt=True):
     if ":" in name:
         state, county = name.split(":")

backend/config.py

@@ -16,7 +16,6 @@
 import os
 import sys
 from datetime import datetime, timedelta
-from enum import Enum
 import shapely.wkt
 import yaml
 

backend/connectors/bor/source.py

@@ -13,10 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ===============================================================================
-import pprint
-from json import JSONDecodeError
 
-import httpx
 
 from backend.connectors.bor.transformer import BORSiteTransformer, BORAnalyteTransformer
 from backend.connectors.mappings import BOR_ANALYTE_MAPPING
@@ -27,12 +24,9 @@
     SOURCE_PARAMETER_NAME,
     SOURCE_PARAMETER_UNITS,
     DT_MEASURED,
-    EARLIEST,
-    LATEST,
 )
 
 from backend.source import (
-    BaseSource,
     BaseSiteSource,
     BaseAnalyteSource,
     get_terminal_record,

backend/connectors/bor/transformer.py

@@ -13,13 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ===============================================================================
-import pprint
-import json
 
-from backend.record import SiteRecord
 from backend.transformer import (
-    BaseTransformer,
-    WaterLevelTransformer,
     SiteTransformer,
     AnalyteTransformer,
 )

backend/connectors/ckan/source.py

@@ -15,7 +15,6 @@
 # ===============================================================================
 from itertools import groupby
 
-import httpx
 
 from backend.connectors import (
     OSE_ROSWELL_HONDO_BOUNDING_POLYGON,
@@ -34,7 +33,6 @@
 from backend.constants import (
     FEET,
     DTW,
-    DTW_UNITS,
     DT_MEASURED,
     PARAMETER_NAME,
     PARAMETER_UNITS,
@@ -43,7 +41,6 @@
     SOURCE_PARAMETER_UNITS,
 )
 from backend.source import (
-    BaseSource,
     BaseSiteSource,
     BaseWaterLevelSource,
     get_terminal_record,

backend/connectors/ckan/transformer.py

@@ -13,15 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ===============================================================================
-import pprint
 
-from backend.record import SiteRecord
-from backend.transformer import BaseTransformer, WaterLevelTransformer, SiteTransformer
+from backend.transformer import WaterLevelTransformer, SiteTransformer
 
 
 class OSERoswellSiteTransformer(SiteTransformer):
     def _transform(self, record):
-        # pprint.pprint(record)
         lat = float(record["DD_lat"])
         lng = float(record["DD_lon"])
         # if not self.contained(lng, lat):

backend/connectors/isc_seven_rivers/source.py

@@ -15,7 +15,6 @@
 # ===============================================================================
 from datetime import datetime
 
-import httpx
 
 from backend.connectors import ISC_SEVEN_RIVERS_BOUNDING_POLYGON
 from backend.connectors.mappings import ISC_SEVEN_RIVERS_ANALYTE_MAPPING
@@ -28,16 +27,13 @@
     PARAMETER_UNITS,
     SOURCE_PARAMETER_NAME,
     SOURCE_PARAMETER_UNITS,
-    EARLIEST,
-    LATEST,
 )
 from backend.connectors.isc_seven_rivers.transformer import (
     ISCSevenRiversSiteTransformer,
     ISCSevenRiversWaterLevelTransformer,
     ISCSevenRiversAnalyteTransformer,
 )
 from backend.source import (
-    BaseSource,
     BaseSiteSource,
     BaseWaterLevelSource,
     BaseAnalyteSource,

backend/connectors/isc_seven_rivers/transformer.py

@@ -13,12 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ===============================================================================
-import shapely.wkt
-from shapely import Point
 
-from backend.record import SiteRecord
 from backend.transformer import (
-    BaseTransformer,
     WaterLevelTransformer,
     SiteTransformer,
     AnalyteTransformer,

backend/connectors/nmbgmr/source.py

@@ -32,8 +32,6 @@
     PARAMETER_VALUE,
     SOURCE_PARAMETER_NAME,
     SOURCE_PARAMETER_UNITS,
-    EARLIEST,
-    LATEST,
 )
 from backend.source import (
     BaseWaterLevelSource,

backend/connectors/nmbgmr/transformer.py

@@ -13,10 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ===============================================================================
-from backend.constants import DTW
-from backend.record import SiteRecord
 from backend.transformer import (
-    BaseTransformer,
     WaterLevelTransformer,
     SiteTransformer,
     AnalyteTransformer,