chore(plating): de-dash fusion_plating_iot too

Same em-dash -> hyphen sweep applied to fusion_plating_iot (lives under
fusion_iot/ so the main commit missed it). Comments/strings only; no
functional dashes in this module. Keeps git in sync with the in-place
de-dash already applied to entech.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

fusion_iot/fusion_plating_iot/models/fp_tank_reading.py

@@ -5,7 +5,7 @@
 """Time-series of sensor readings.
 
 Every POST to /fp/iot/ingest (or every broadcast from the iot proxy)
-lands as a new row here. Kept intentionally append-only — we never
+lands as a new row here. Kept intentionally append-only - we never
 update or delete readings, which makes this the compliance log for
 bath-temperature history.
 
@@ -13,7 +13,7 @@ Auto-creates a fusion.plating.quality.hold when a reading falls
 outside the sensor's alert range AND the sensor has
 `alert_on_out_of_spec` enabled. The hold is created once per
 excursion (we don't spam a new hold for every reading during a
-sustained excursion) — tracked via the sensor's most-recent
+sustained excursion) - tracked via the sensor's most-recent
 `last_reading_in_spec` flag.
 """
 
@@ -26,7 +26,7 @@ _logger = logging.getLogger(__name__)
 
 class FpTankReading(models.Model):
     _name = 'fp.tank.reading'
-    _description = 'Fusion Plating — Tank Sensor Reading'
+    _description = 'Fusion Plating - Tank Sensor Reading'
     _order = 'reading_at desc, id desc'
     _rec_name = 'display_name'
 
@@ -34,7 +34,7 @@ class FpTankReading(models.Model):
         'fp.tank.sensor', string='Sensor', required=True,
         ondelete='cascade', index=True,
     )
-    # Denormalised for fast list views + kpi queries — auto-filled at
+    # Denormalised for fast list views + kpi queries - auto-filled at
     # create time from sensor_id. Indexed for historical trending.
     tank_id = fields.Many2one(
         'fusion.plating.tank', string='Tank',
@@ -56,7 +56,7 @@ class FpTankReading(models.Model):
     value = fields.Float(
         string='Value (raw)', required=True, digits=(12, 4),
         help='Stored reading in the sensor\'s canonical unit (for '
-             'temperature sensors this is always °C — the DS18B20 and '
+             'temperature sensors this is always °C - the DS18B20 and '
              'every other temperature chip reports in Celsius natively; '
              'keeping storage canonical lets us switch display units '
              'per-company without re-migrating history).',
@@ -66,7 +66,7 @@ class FpTankReading(models.Model):
     )
 
     # ------------------------------------------------------------------
-    # Display-aware fields — converted to the company's preferred unit
+    # Display-aware fields - converted to the company's preferred unit
     # (res.company.x_fc_default_temp_uom = 'F' or 'C'). Only the list
     # and form views should show these; internal spec comparisons use
     # `value` so thresholds stay consistent across regions.
@@ -84,7 +84,7 @@ class FpTankReading(models.Model):
     @api.depends('value', 'parameter_id', 'parameter_id.parameter_type',
                  'parameter_id.uom')
     def _compute_display(self):
-        # Read once per compute call — env.company rarely changes mid-batch.
+        # Read once per compute call - env.company rarely changes mid-batch.
         pref = self.env.company.x_fc_default_temp_uom or 'C'
         for r in self:
             ptype = (r.parameter_id.parameter_type or '').lower()
@@ -96,7 +96,7 @@ class FpTankReading(models.Model):
                 r.display_unit = r.parameter_id.uom_display or ''
 
     # ------------------------------------------------------------------
-    # Deviation from setpoint — signed Δ from the sensor's effective target
+    # Deviation from setpoint - signed Δ from the sensor's effective target
     # in the company-preferred unit. Zero if no setpoint defined.
     # ------------------------------------------------------------------
     deviation_from_target = fields.Float(
@@ -184,10 +184,10 @@ class FpTankReading(models.Model):
         for r in self:
             sensor = r.sensor_id.name or 'sensor'
             at = fields.Datetime.to_string(r.reading_at) if r.reading_at else ''
-            r.display_name = f'{sensor} — {r.display_value:.2f} {r.display_unit} @ {at}'
+            r.display_name = f'{sensor} - {r.display_value:.2f} {r.display_unit} @ {at}'
 
     # ------------------------------------------------------------------
-    # Create hook — evaluate against spec + raise a quality hold if we
+    # Create hook - evaluate against spec + raise a quality hold if we
     # just crossed INTO an out-of-spec state.
     # ------------------------------------------------------------------
     @api.model_create_multi
@@ -197,7 +197,7 @@ class FpTankReading(models.Model):
             try:
                 rec._evaluate_spec()
             except Exception:
-                # Never let alert-logic break the ingest path — the
+                # Never let alert-logic break the ingest path - the
                 # reading itself is what matters for compliance. Log
                 # and carry on.
                 _logger.exception(
@@ -256,7 +256,7 @@ class FpTankReading(models.Model):
             'hold_reason': 'out_of_spec',
             'description': description,
             'qty_on_hold': 1,
-            # state defaults to 'on_hold' — leave it
+            # state defaults to 'on_hold' - leave it
         }
         # Attach facility + work-centre context if the tank has them,
         # so the hold is actionable from the shop floor (operator can