chore: remove stale agent reports and add PYTHONDONTWRITEBYTECODE export to Makefile

Delete four stale SEO and style agent report JSON/MD files from agents/reports/ that had zero findings or were superseded. Export PYTHONDONTWRITEBYTECODE=1 in the Makefile so all make targets suppress bytecode generation, and add a `tree` target that lists the repository file tree via git ls-tree. Update AGENTS.md and CLAUDE.md documentation to reflect that routers now form a directory tree mirroring URL paths and that bytecode writing is disabled project-wide.

devplacepy/routers/admin/__init__.py

@@ -0,0 +1,28 @@
+# retoor <retoor@molodetz.nl>
+
+from devplacepy.routers.admin import (
+    aiquota,
+    aiusage,
+    auditlog,
+    containers,
+    media,
+    news,
+    notifications,
+    services,
+    settings,
+    trash,
+    users,
+)
+from devplacepy.routers.admin.index import router
+
+router.include_router(users.router)
+router.include_router(aiusage.router)
+router.include_router(aiquota.router)
+router.include_router(media.router)
+router.include_router(trash.router)
+router.include_router(settings.router)
+router.include_router(notifications.router)
+router.include_router(news.router)
+router.include_router(auditlog.router)
+router.include_router(services.router, prefix="/services")
+router.include_router(containers.router, prefix="/containers")