Add discipline strategy, WP sizing, Split-by-Discipline & dashboard

SOP config (Governance step) now sets project discipline policy:
- disciplines list, discipline strategy (single/multi/planner-choice),
  letter instance-suffix style, and a max-hours split threshold.

WP Creator becomes discipline-aware:
- discipline picker; selecting 2+ turns the flat scope into per-discipline
  scope sections, each with its own status (rolls up to least-advanced).
- "Split by Discipline" turns a multi-discipline WP into WP01A/B/C instances
  linked to a kept master (instanceOf/parentNumber/split/children).
- est-hours warning against the SOP split threshold.

New WP Dashboard (header button, home card, ?view=dashboard deep-link):
metrics, status/discipline breakdowns, a gating panel, and a filterable
board with view/edit/issue. Reads localStorage via an API-ready WPData
adapter; masters excluded from counts.

Backend: POST /api/wps/{id}/issue (enforces the constraint gate),
POST /api/wps/{id}/status, GET /api/wps/metrics; work_packages gains
parent_id + issued_at.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/models.py

@@ -51,10 +51,13 @@ class WorkPackage(Base):
     sop_id: Mapped[Optional[str]] = mapped_column(
         String(40), ForeignKey("sops.id", ondelete="SET NULL"), nullable=True, index=True
     )
+    # parent_id links a discipline instance (WP01A) back to its master (WP01).
+    parent_id: Mapped[Optional[str]] = mapped_column(String(40), nullable=True, index=True)
     number: Mapped[str] = mapped_column(String(120), default="")
     subject: Mapped[str] = mapped_column(String(400), default="")
     type: Mapped[str] = mapped_column(String(120), default="")
     status: Mapped[str] = mapped_column(String(40), default="Draft")
+    issued_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
     data: Mapped[dict] = mapped_column(JSON, default=dict)
     created_by: Mapped[str] = mapped_column(String(200), default="")
     created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utcnow)
@@ -62,8 +65,9 @@ class WorkPackage(Base):
 
     def summary(self) -> dict:
         return {
-            "id": self.id, "sop_id": self.sop_id, "number": self.number,
-            "subject": self.subject, "type": self.type, "status": self.status,
+            "id": self.id, "sop_id": self.sop_id, "parent_id": self.parent_id,
+            "number": self.number, "subject": self.subject, "type": self.type,
+            "status": self.status, "issued_at": _iso(self.issued_at),
             "created_by": self.created_by,
             "created_at": _iso(self.created_at), "updated_at": _iso(self.updated_at),
         }