refactor: restructure to domain-driven architecture

Spring Boot style package organization:

domain/        — business domains (member, shorten, apply, form, recruit, setting)
  each with: repository.py, service.py, resolver.py, model.py, types.py
global_/       — cross-cutting (auth, authz, exception)
common/        — shared infrastructure (config, database, tables, repository, id_gen, timezone)
infra/         — external services (email, slack)
graphql/       — API layer (schema, context, convert, errors)
filter/        — generic filter/pagination

Renames: pg_repository→repository, schema→model, resolvers→resolver

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ImTotem

.idea/codeStyles/codeStyleConfig.xml

@@ -5,9 +5,9 @@
 
 from alembic import context
 
-from bcsd_api.core.config import Settings
-from bcsd_api.core.database import metadata
-import bcsd_api.core.tables  # noqa: F401 — registers tables on metadata
+from bcsd_api.common.config import Settings
+from bcsd_api.common.database import metadata
+import bcsd_api.common.tables  # noqa: F401 — registers tables on metadata
 
 config = context.config
 

alembic/env.py

@@ -4,19 +4,19 @@
 from fastapi import Depends, Request
 from sqlalchemy import Connection
 
-from .auth import token as jwt_token
-from .authz.client import AuthzClient
-from .core.config import Settings
-from .core.database import create_engine, get_connection
-from .email import ResendSender
-from .email.sender import EmailSender
-from .exception import Unauthorized
-from .apply.pg_repository import PgAnswerRepository, PgApplicationRepository
-from .form.pg_repository import PgFormRepository, PgQuestionRepository
-from .member.pg_repository import PgMemberRepository
-from .recruit.pg_repository import PgRecruitRepository
-from .setting.pg_repository import PgSettingRepository
-from .shorten.pg_repository import PgLinkRepository
+from .global_.auth import token as jwt_token
+from .global_.authz.client import AuthzClient
+from .common.config import Settings
+from .common.database import create_engine, get_connection
+from .infra.email import ResendSender
+from .infra.email.sender import EmailSender
+from .global_.exception import Unauthorized
+from .domain.apply.repository import PgAnswerRepository, PgApplicationRepository
+from .domain.form.repository import PgFormRepository, PgQuestionRepository
+from .domain.member.repository import PgMemberRepository
+from .domain.recruit.repository import PgRecruitRepository
+from .domain.setting.repository import PgSettingRepository
+from .domain.shorten.repository import PgLinkRepository
 
 
 @lru_cache