refactor: move game-specific import logic into profiles; unblock Tomie import

- Add app/games: GameProfile base, registry, ReaderHooks and renpy/naninovel/
  tomie profiles. pipeline, preflight, detect and mods dispatch via the registry
- Move tomie_* converter modules to app/games/tomie and split out reader hooks,
  import, mod validation and known defects
- Tolerate the 31 authoring defects of the pinned Tomie build as report
  warnings (exact list, per-script counts); any new defect still blocks import
- Frontend: runtime registry (runtimes.ts) with lazy Tomie launcher
- Add profile/registry tests and docs/GAME_PROFILES.md; update IMPORT.md

Full media export of the original Tomie build is not yet verified.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

backend/tests/test_game_profiles.py

@@ -0,0 +1,54 @@
+from pathlib import Path
+
+import pytest
+
+from app.converter.compatibility import Issue
+from app.games import registry
+from app.games.base import GameProfile
+from app.games.tomie.defects import KNOWN_DEFECTS, split_known
+
+
+def test_builtin_profiles_are_registered():
+    ids = {profile.id for profile in registry.all_profiles()}
+    assert {"renpy", "naninovel", "tomie/expansion-1.3801"} <= ids
+    assert registry.for_runtime("tomie/1").id == "tomie/expansion-1.3801"
+    assert registry.for_runtime(None) is None
+    assert registry.for_runtime("unknown/9") is None
+
+
+def test_specific_profile_wins_over_engine_profile(tmp_path, monkeypatch):
+    assert registry.select("naninovel", tmp_path).id == "naninovel"  # hash does not match
+    monkeypatch.setattr("app.games.tomie.identify", lambda root: "tomie/expansion-1.3801")
+    assert registry.select("naninovel", tmp_path).id == "tomie/expansion-1.3801"
+    assert registry.select("renpy", tmp_path).id == "renpy"
+    assert registry.select("godot", tmp_path) is None
+
+
+def test_new_profile_can_be_registered_once(monkeypatch):
+    monkeypatch.setattr(registry, "_PROFILES", list(registry.all_profiles()))
+
+    class Custom(GameProfile):
+        id = "custom/game-1"
+        engine = "naninovel"
+        specific = True
+
+        def claims(self, root: Path) -> bool:
+            return root.name == "Custom"
+
+    registry.register(Custom())
+    assert registry.select("naninovel", Path("x/Custom")).id == "custom/game-1"
+    assert registry.select("naninovel", Path("x/Other")).id == "naninovel"
+    with pytest.raises(ValueError, match="уже зарегистрирован"):
+        registry.register(Custom())
+
+
+def test_known_defects_are_waived_only_up_to_the_recorded_count():
+    (code, message, script), allowed = next(iter(KNOWN_DEFECTS.items()))
+    known_issue = Issue(code, message, f"{script}:10")
+    blocking, known = split_known([known_issue] * (allowed + 1))
+    assert len(known) == allowed and len(blocking) == 1
+    new = Issue("missing_target", "Не найден переход Nowhere.Start", "Common:1")
+    blocking, known = split_known([new, known_issue])
+    assert blocking == [new] and known == [known_issue]
+    same_message_other_script = Issue(code, message, "SomewhereElse:1")
+    assert split_known([same_message_other_script])[0] == [same_message_other_script]

backend/tests/test_tomie_format.py

@@ -7,9 +7,9 @@ def test_native_translation_and_mod_edits_rebuild_the_same_vm_input(tmp_path, mo
     from app import mods
     from app.config import get_settings
     from app.converter.nani_package import Package, text_records
-    from app.converter.naninovel import _convert_package
-    from app.converter.tomie_format import unpack_modules
-    from app.converter.tomie_profile import PROFILE
+    from app.games.tomie.convert import convert_package
+    from app.games.tomie.format import unpack_modules
+    from app.games.tomie.profile import PROFILE
     from app.translation import apply_changes, locale_tables, text_index
     monkeypatch.setenv("DATA_DIR", str(tmp_path / "data"))
     get_settings.cache_clear()
@@ -27,9 +27,9 @@ def test_native_translation_and_mod_edits_rebuild_the_same_vm_input(tmp_path, mo
     }
     package.texts = text_records("Tips", "tip:Title|Description {points}", "Tips")
     media = {key: {} for key in ("backgrounds", "characters", "textures", "videos", "audio", "fonts")}
-    monkeypatch.setattr("app.converter.tomie_assets.export_media", lambda *_: ({}, media, {}))
+    monkeypatch.setattr("app.games.tomie.convert.export_media", lambda *_: ({}, media, {}))
     try:
-        result = _convert_package(tmp_path, tmp_path / "work", lambda _: None, package)
+        result = convert_package(tmp_path, tmp_path / "work", lambda _: None, package)
         index = text_index(result.manifest)
         assert {line.source for line in index.lines} == {"Points: {points}", "Title", "Description {points}"}
         line = next(line for line in index.lines if line.source.startswith("Points:"))
@@ -56,7 +56,7 @@ def test_native_translation_and_mod_edits_rebuild_the_same_vm_input(tmp_path, mo
 
 
 def test_video_recovery_checks_ranges_and_copies_only_declared_bytes(tmp_path):
-    from app.converter.tomie_assets import recover_object
+    from app.games.tomie.assets import recover_object
     data = tmp_path / "data"
     out = tmp_path / "out"
     data.mkdir(); out.mkdir()

backend/tests/test_tomie_profile.py

@@ -6,7 +6,7 @@ from types import SimpleNamespace
 import pytest
 
 from app.converter.nani_expr import assignment, parse
-from app.converter.tomie_profile import (
+from app.games.tomie.profile import (
     ASSEMBLY_HASH,
     FUNCTIONS,
     constant_value,
@@ -49,7 +49,7 @@ def test_profile_expression_functions_are_opt_in():
 
 
 def test_full_vm_validation_rejects_unimplemented_and_broken_commands():
-    from app.converter.tomie_validation import validate_runtime
+    from app.games.tomie.validation import validate_runtime
     data = {"scripts": {"Main": {"labels": {"Start": 0}, "commands": [
         {"op": "AddChoice", "args": {"ChoiceSummary": "OK", "OnSelected": ['@set result=If(true, 1, 2)']}, "line": 1},
         {"op": "Goto", "args": {"Path": ".Missing"}, "line": 2},
@@ -64,7 +64,7 @@ def test_full_vm_validation_rejects_unimplemented_and_broken_commands():
 
 
 def test_choice_templates_and_quoted_commas_are_validated_without_evaluating_them():
-    from app.converter.tomie_validation import inline_commands, validate_runtime
+    from app.games.tomie.validation import inline_commands, validate_runtime
     assert inline_commands('@set x=If(true, "a,b", "c"), @return') == ['@set x=If(true, "a,b", "c")', '@return']
     data = {"scripts": {"Main": {"labels": {}, "commands": [
         {"op": "AddChoice", "args": {"OnSelected": {"template": '@set result="{answer}"'}}},
@@ -76,7 +76,7 @@ def test_choice_templates_and_quoted_commas_are_validated_without_evaluating_the
 
 
 def test_native_effect_and_ui_extensions_are_rejected_before_media_export():
-    from app.converter.tomie_validation import validate_runtime
+    from app.games.tomie.validation import validate_runtime
     data = {"scripts": {"Main": {"labels": {}, "commands": [
         {"op": "Spawn", "args": {"Path": "NativePlugin"}},
         {"op": "ShowUI", "args": {"UINames": ["CustomScreen"]}},