Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplefile-backend/migrations/015_create_collections_by_id.up.cql

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+-- Main collections table with ALL Collection struct fields
+CREATE TABLE IF NOT EXISTS maplefile.collections_by_id (
+    -- Identifiers
+    id UUID PRIMARY KEY,
+    owner_id UUID,
+
+    -- Encryption and Content Details
+    encrypted_name TEXT,
+    collection_type TEXT,
+    encrypted_collection_key TEXT,
+
+    -- Custom icon (emoji or predefined icon identifier, encrypted)
+    -- Empty string = default folder icon
+    -- Emoji character (e.g., "📷") = display as emoji
+    -- Icon identifier (e.g., "icon:briefcase") = predefined Heroicon
+    encrypted_custom_icon TEXT,
+
+    -- Hierarchical structure fields
+    parent_id UUID,
+    ancestor_ids TEXT, -- JSON array of UUIDs
+
+    -- File count for performance optimization
+    file_count BIGINT,
+
+    -- Tags assigned to this collection (embedded tag data as JSON)
+    tags TEXT,
+
+    -- Ownership, timestamps and conflict resolution
+    created_at TIMESTAMP,
+    created_by_user_id UUID,
+    modified_at TIMESTAMP,
+    modified_by_user_id UUID,
+    version BIGINT,
+
+    -- State management
+    state TEXT,
+    tombstone_version BIGINT,
+    tombstone_expiry TIMESTAMP,
+
+    -- IP tracking for GDPR compliance
+    created_from_ip_address TEXT,
+    modified_from_ip_address TEXT,
+    ip_anonymized_at TIMESTAMP
+);