Files
d ab5a82372c feat: content-addressable dedup storage + limits + block shredding
Attachment deduplication (SHA-256 content-addressable storage):
- Identical files stored once globally (m8sh/sha256/<hash>)
- Reference-counted deletion: blob removed only when last ref deleted
- StoreAttachmentDedup, DeleteAttachmentDedup, StoreAttachmentFromReader

Comprehensive safety limits:
- USER_QUOTA: 5 GB default (admins unlimited, 0 = unlimited)
- MAX_ATTACHMENT_SIZE: 100 MB per file
- MAX_ATTACHMENTS_PER_MESSAGE: 50 files
- MAX_MESSAGE_SIZE: 1 MB body
- MAX_CONVERSATIONS: 1000 per user
- MAX_MESSAGES_PER_CONVERSATION: 10000

Block-domain shredding:
- ShredAttachmentsForDomain deletes all blobs + metadata for domain
- Dedup-aware: only removes blobs with no remaining references

Assisted-By: Cline:anthropic-claude-sonnet-4-20250514
2026-07-21 23:40:12 +03:00
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