Optimize dashboard overview loading

api/schemas/state.py

@@ -1,5 +1,6 @@
 import uuid
 from datetime import datetime
+from typing import Any
 
 from pydantic import BaseModel
 
@@ -84,3 +85,51 @@ class StateSummary(BaseModel):
     contribution_counts: dict[str, int] = {}
     licence_risk_count: int = 0
     open_capability_requests: int = 0
+
+
+class DashboardWorkplanRow(BaseModel):
+    id: uuid.UUID
+    title: str
+    status: str
+    domain: str = "unknown"
+    repo_label: str = "unassigned"
+    workplan_filename: str | None = None
+    workplan_relative_path: str | None = None
+    workplan_archived: bool = False
+    health_labels: list[str] = []
+    href: str
+    done: int = 0
+    progress: int = 0
+    wait: int = 0
+    todo: int = 0
+    total: int = 0
+    created_at: datetime
+    updated_at: datetime
+
+
+class DashboardSourceMeta(BaseModel):
+    ok: bool = True
+    stale: bool = False
+    cache_age_seconds: float | None = None
+    refresh_in_progress: bool = False
+    error: str | None = None
+
+
+class DashboardOverview(BaseModel):
+    generated_at: datetime
+    totals: Totals
+    topics: list[TopicWithWorkstreams]
+    blocking_decisions: list[DecisionRead]
+    waiting_tasks: list[TaskRead]
+    blocked_tasks: list[TaskRead] = []
+    recent_progress: list[ProgressEventRead]
+    next_steps: list[NextStep] = []
+    contribution_counts: dict[str, int] = {}
+    licence_risk_count: int = 0
+    open_capability_requests: int = 0
+    sbom_snapshot_count: int = 0
+    sbom_package_total: int = 0
+    registration_milestones: list[ProgressEventRead] = []
+    workplan_rows: list[DashboardWorkplanRow] = []
+    sources: dict[str, DashboardSourceMeta] = {}
+    diagnostics: dict[str, Any] = {}