feat: project colors, timeline filters, sidebar fix, GitLooper agent, and misc improvements

- Fix sidebar double-highlight on /vacations/my (Gitea #6): add isNavItemActive() helper
- Add project color picker (schema + API + modal + timeline rendering)
- Add ProjectCombobox/ResourceCombobox to timeline toolbar
- Show PENDING vacations on timeline with dashed/dimmed style
- Add "show demand projects" preference with localStorage persistence
- Add ProjectAssignmentsTable with total hours/cost columns
- Extend vacation API to accept status arrays
- Add GitLooper formal YAML agent configuration
- Extend user admin with permission overrides UI
- Add delete-assignment use case tests
- Add status-styles.ts shared badge constants
- Centralize formatMoney/formatCents in format.ts

Co-Authored-By: claude-flow <ruv@ruv.net>

packages/application/src/use-cases/allocation/delete-assignment.ts

@@ -1,13 +1,15 @@
 import type { Prisma, PrismaClient } from "@planarchy/db";
+import { AllocationStatus } from "@planarchy/shared";
 
 type DbClient =
-  | Pick<PrismaClient, "assignment">
-  | Pick<Prisma.TransactionClient, "assignment">;
+  | Pick<PrismaClient, "assignment" | "demandRequirement">
+  | Pick<Prisma.TransactionClient, "assignment" | "demandRequirement">;
 
 export interface DeleteAssignmentResult {
   deletedId: string;
   projectId: string;
   resourceId: string;
+  reopenedDemandId: string | null;
 }
 
 export async function deleteAssignment(
@@ -20,6 +22,7 @@ export async function deleteAssignment(
       id: true,
       projectId: true,
       resourceId: true,
+      demandRequirementId: true,
     },
   });
 
@@ -31,9 +34,31 @@ export async function deleteAssignment(
     where: { id: assignment.id },
   });
 
+  // Reverse demand fill progress: re-open the demand if the assignment was linked
+  let reopenedDemandId: string | null = null;
+  if (assignment.demandRequirementId) {
+    const demand = await db.demandRequirement.findUnique({
+      where: { id: assignment.demandRequirementId },
+      select: { id: true, headcount: true, status: true },
+    });
+
+    if (demand) {
+      const wasCompleted = demand.status === AllocationStatus.COMPLETED;
+      await db.demandRequirement.update({
+        where: { id: demand.id },
+        data: {
+          headcount: wasCompleted ? 1 : demand.headcount + 1,
+          status: AllocationStatus.ACTIVE,
+        },
+      });
+      reopenedDemandId = demand.id;
+    }
+  }
+
   return {
     deletedId: assignment.id,
     projectId: assignment.projectId,
     resourceId: assignment.resourceId,
+    reopenedDemandId,
   };
 }