Fix legacy stage_direction references after line_type migration

The stage_direction boolean field was removed in commit 08b6424 and
replaced with the line_type enum. Updated 3 production files and 1 test
file that still referenced the old attribute.

Changed all instances of `if line.stage_direction:` to
`if line.line_type != ScriptLineType.DIALOGUE:` to properly filter
out non-dialogue lines (stage directions, cue lines, and spacing).

Files modified:
- server/controllers/api/show/characters.py (line 201)
- server/controllers/api/show/cast.py (line 189)
- server/utils/show/mic_assignment.py (line 127)
- server/test/utils/show/test_mic_assignment.py (multiple mocks)

Fixes #812

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Tim020

server/controllers/api/show/cast.py

@@ -3,7 +3,7 @@
 from sqlalchemy import select
 from tornado import escape
 
-from models.script import Script, ScriptLine, ScriptRevision
+from models.script import Script, ScriptLine, ScriptLineType, ScriptRevision
 from models.show import Cast, Character, Show
 from rbac.role import Role
 from schemas.schemas import CastSchema
@@ -186,7 +186,7 @@ async def get(self):
                 line_counts = defaultdict(lambda: defaultdict(lambda: defaultdict(int)))
                 for line_association in revision.line_associations:
                     line: ScriptLine = line_association.line
-                    if line.stage_direction:
+                    if line.line_type != ScriptLineType.DIALOGUE:
                         continue
                     for line_part in line.line_parts:
                         if line_part.line_part_cuts is not None:

server/controllers/api/show/characters.py

@@ -3,7 +3,7 @@
 from sqlalchemy import select
 from tornado import escape
 
-from models.script import Script, ScriptLine, ScriptRevision
+from models.script import Script, ScriptLine, ScriptLineType, ScriptRevision
 from models.show import Cast, Character, CharacterGroup, Show
 from rbac.role import Role
 from schemas.schemas import CharacterGroupSchema, CharacterSchema
@@ -198,7 +198,7 @@ async def get(self):
                 line_counts = defaultdict(lambda: defaultdict(lambda: defaultdict(int)))
                 for line_association in revision.line_associations:
                     line: ScriptLine = line_association.line
-                    if line.stage_direction:
+                    if line.line_type != ScriptLineType.DIALOGUE:
                         continue
                     for line_part in line.line_parts:
                         if line_part.line_part_cuts is not None:

server/test/utils/show/test_mic_assignment.py

@@ -9,6 +9,7 @@
 from unittest.mock import MagicMock
 from collections import defaultdict
 
+from models.script import ScriptLineType
 from utils.show.mic_assignment import (
     SceneMetadata,
     swap_cost,
@@ -81,7 +82,7 @@ def mock_revision(self):
         # Create mock line associations
         line1 = MagicMock()
         line1.scene_id = 1
-        line1.stage_direction = False
+        line1.line_type = ScriptLineType.DIALOGUE
 
         line_part1 = MagicMock()
         line_part1.character_id = 10
@@ -96,7 +97,7 @@ def mock_revision(self):
         # Line 2 - same character in different scene
         line2 = MagicMock()
         line2.scene_id = 2
-        line2.stage_direction = False
+        line2.line_type = ScriptLineType.DIALOGUE
 
         line_part2 = MagicMock()
         line_part2.character_id = 10
@@ -156,7 +157,7 @@ def test_stage_directions_ignored(self):
         # Create stage direction line
         line = MagicMock()
         line.scene_id = 1
-        line.stage_direction = True
+        line.line_type = ScriptLineType.STAGE_DIRECTION
 
         line_part = MagicMock()
         line_part.character_id = 10
@@ -184,7 +185,7 @@ def test_cut_lines_ignored(self):
         # Create cut line
         line = MagicMock()
         line.scene_id = 1
-        line.stage_direction = False
+        line.line_type = ScriptLineType.DIALOGUE
 
         line_part = MagicMock()
         line_part.character_id = 10
@@ -212,7 +213,7 @@ def test_character_groups_expanded(self):
         # Create line with character group
         line = MagicMock()
         line.scene_id = 1
-        line.stage_direction = False
+        line.line_type = ScriptLineType.DIALOGUE
 
         line_part = MagicMock()
         line_part.character_id = None

server/utils/show/mic_assignment.py

@@ -13,7 +13,7 @@
 from sqlalchemy.orm import Session
 
 from models.mics import MicrophoneAllocation
-from models.script import ScriptLine, ScriptRevision
+from models.script import ScriptLine, ScriptLineType, ScriptRevision
 from models.show import Character, CharacterGroup
 
 
@@ -124,7 +124,7 @@ def collect_character_appearances(
         line: ScriptLine = line_assoc.line
 
         # Skip stage directions
-        if line.stage_direction:
+        if line.line_type != ScriptLineType.DIALOGUE:
             continue
 
         # Count lines per character