merge: resolve conflicts after merging main

Adapt runtime features (usage tracking, ping, heartbeat) to main's
multi-workspace architecture. Update frontend imports from @multica/types
to @/shared/types after the package consolidation.

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

server/pkg/db/queries/issue.sql

@@ -16,9 +16,9 @@ INSERT INTO issue (
     workspace_id, title, description, status, priority,
     assignee_type, assignee_id, creator_type, creator_id,
     parent_issue_id, acceptance_criteria, context_refs,
-    position
+    position, due_date
 ) VALUES (
-    $1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13
+    $1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14
 ) RETURNING *;
 
 -- name: UpdateIssue :one