Extends SchedulerState with running_overlays / refresh_running /
blocked_servers_by_overlay, and updates can_start with the truth table:
install and refresh_workshop_items are global mutexes; build_overlay
serializes per-overlay; server jobs block on builds for any overlay
their blueprint references.
Adds enqueue_build_overlay coalescing helper that returns an existing
queued job for the same overlay rather than inserting a duplicate.
Adds run_job dispatch for build_overlay (BUILDERS[overlay.type].build)
and refresh_workshop_items (re-fetches metadata, re-downloads on
time_updated/filename change, enqueues coalesced rebuilds for affected
overlays).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- validate instance names at the host lib and web boundary against
[a-z0-9][a-z0-9_-]{0,63} to prevent path traversal via Server.name
- fail-closed on SECRET_KEY: load_config returns None when env unset,
create_app raises if missing or "dev" outside TESTING
- close login timing oracle by hashing a dummy digest when the user
is not found, equalizing response time
- set SESSION_COOKIE_SECURE outside TESTING
- delete_instance tolerates stop_service and fusermount3 failures so
partially-initialized instances clean up without contract breaks;
drops the is_mount() preflight that violated AGENTS.md
- document claim_next_job's single-process assumption
- clarify emit_step contract via docstring
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
