chore: lock runtime log output paths and ignore local logs

backend/src/core/config/settings.py

@@ -4,7 +4,7 @@ from pathlib import Path
 from typing import ClassVar, Literal
 from urllib.parse import quote
 
-from pydantic import BaseModel, Field, computed_field
+from pydantic import BaseModel, Field, computed_field, field_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
@@ -37,6 +37,26 @@ class RuntimeSettings(BaseModel):
     )
     sql_log_queries: bool = False
 
+    @field_validator("log_dir", mode="before")
+    @classmethod
+    def lock_log_dir(cls, _: object) -> str:
+        return "logs"
+
+    @field_validator("log_error_dir", mode="before")
+    @classmethod
+    def lock_log_error_dir(cls, _: object) -> str:
+        return "logs/errors"
+
+    @field_validator("log_file_name", mode="before")
+    @classmethod
+    def lock_log_file_name(cls, _: object) -> str:
+        return "app.log"
+
+    @field_validator("log_error_file_name", mode="before")
+    @classmethod
+    def lock_log_error_file_name(cls, _: object) -> str:
+        return "error.log"
+
 
 class CelerySettings(BaseModel):
     broker_url: str | None = None

backend/tests/unit/test_logging_settings.py

@@ -24,12 +24,16 @@ def test_runtime_settings_defaults() -> None:
 def test_runtime_settings_env_override(monkeypatch: MonkeyPatch) -> None:
     monkeypatch.setenv("SOCIAL_RUNTIME__LOG_DIR", "var/logs")
     monkeypatch.setenv("SOCIAL_RUNTIME__LOG_ERROR_DIR", "var/logs/errors")
+    monkeypatch.setenv("SOCIAL_RUNTIME__LOG_FILE_NAME", "custom.log")
+    monkeypatch.setenv("SOCIAL_RUNTIME__LOG_ERROR_FILE_NAME", "custom-error.log")
     monkeypatch.setenv("SOCIAL_RUNTIME__LOG_ROTATION", "size")
     monkeypatch.setenv("SOCIAL_RUNTIME__LOG_ROTATION_MAX_BYTES", "2048")
 
     settings = Settings()
 
-    assert settings.runtime.log_dir == "var/logs"
-    assert settings.runtime.log_error_dir == "var/logs/errors"
+    assert settings.runtime.log_dir == "logs"
+    assert settings.runtime.log_error_dir == "logs/errors"
+    assert settings.runtime.log_file_name == "app.log"
+    assert settings.runtime.log_error_file_name == "error.log"
     assert settings.runtime.log_rotation == "size"
     assert settings.runtime.log_rotation_max_bytes == 2048