feat: multi-account P2P knowledge collaboration (v0.6.0)

Add 3 new MCP tools for cross-Claude knowledge sharing:
- manage_collaborators: address book with trust levels
- share_knowledge: queue entities for P2P sharing with priority
- review_shared_knowledge: staged import with diff/approve/reject

Extended bridge_push/pull/status for shared_knowledge[] flow.
4 new tables: collaborators, pending_shared_entities,
pending_shared_relations, sharing_rules.
2 new entity columns: shared_by, origin.
shared.json v3 format (backward compatible).

UI hotfixes: FullWindow suggested tab preserves overdue-first
sort order; overdue tasks now show red markers in FullWindow.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: RMANOV

db_utils.py

@@ -34,6 +34,11 @@
 TASK_HIDDEN_STATUSES = ("archived", "cancelled")
 TASK_ACTIVE_EXCLUSIONS = ("done", "archived", "cancelled")
 
+# Collaboration constants
+TRUST_LEVELS = ("read_only", "read_write")
+SHARE_TYPES = ("entity", "relation", "all")
+ENTITY_ORIGINS = ("local",)  # "shared:{username}" added dynamically
+
 PRIORITY_RANK = {p: i for i, p in enumerate(TASK_PRIORITIES)}
 
 PRIORITY_COLORS = {

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "sqlite-memory-mcp"
-version = "0.5.1"
+version = "0.6.0"
 description = "SQLite-backed MCP Memory Server with WAL concurrent safety, FTS5 search, session tracking, cross-machine bridge sync, and task management"
 requires-python = ">=3.10"
 dependencies = ["fastmcp>=2.0.0"]