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/__tests__/delete-assignment.test.ts

@@ -2,16 +2,21 @@ import { describe, expect, it, vi } from "vitest";
 import { deleteAssignment } from "../index.js";
 
 describe("deleteAssignment", () => {
-  it("deletes an explicit assignment row", async () => {
+  it("deletes an assignment without demand link", async () => {
     const db = {
       assignment: {
         findUnique: vi.fn().mockResolvedValue({
           id: "assignment_1",
           projectId: "project_1",
           resourceId: "resource_1",
+          demandRequirementId: null,
         }),
         delete: vi.fn().mockResolvedValue({}),
       },
+      demandRequirement: {
+        findUnique: vi.fn(),
+        update: vi.fn(),
+      },
     };
 
     const result = await deleteAssignment(db as never, "assignment_1");
@@ -20,9 +25,76 @@ describe("deleteAssignment", () => {
       deletedId: "assignment_1",
       projectId: "project_1",
       resourceId: "resource_1",
+      reopenedDemandId: null,
     });
     expect(db.assignment.delete).toHaveBeenCalledWith({
       where: { id: "assignment_1" },
     });
+    expect(db.demandRequirement.findUnique).not.toHaveBeenCalled();
+  });
+
+  it("re-opens a COMPLETED demand when its assignment is deleted", async () => {
+    const db = {
+      assignment: {
+        findUnique: vi.fn().mockResolvedValue({
+          id: "assignment_1",
+          projectId: "project_1",
+          resourceId: "resource_1",
+          demandRequirementId: "demand_1",
+        }),
+        delete: vi.fn().mockResolvedValue({}),
+      },
+      demandRequirement: {
+        findUnique: vi.fn().mockResolvedValue({
+          id: "demand_1",
+          headcount: 0,
+          status: "COMPLETED",
+        }),
+        update: vi.fn().mockResolvedValue({}),
+      },
+    };
+
+    const result = await deleteAssignment(db as never, "assignment_1");
+
+    expect(result).toEqual({
+      deletedId: "assignment_1",
+      projectId: "project_1",
+      resourceId: "resource_1",
+      reopenedDemandId: "demand_1",
+    });
+    expect(db.demandRequirement.update).toHaveBeenCalledWith({
+      where: { id: "demand_1" },
+      data: { headcount: 1, status: "ACTIVE" },
+    });
+  });
+
+  it("increments headcount on an ACTIVE demand when its assignment is deleted", async () => {
+    const db = {
+      assignment: {
+        findUnique: vi.fn().mockResolvedValue({
+          id: "assignment_1",
+          projectId: "project_1",
+          resourceId: "resource_1",
+          demandRequirementId: "demand_2",
+        }),
+        delete: vi.fn().mockResolvedValue({}),
+      },
+      demandRequirement: {
+        findUnique: vi.fn().mockResolvedValue({
+          id: "demand_2",
+          headcount: 2,
+          status: "ACTIVE",
+        }),
+        update: vi.fn().mockResolvedValue({}),
+      },
+    };
+
+    const result = await deleteAssignment(db as never, "assignment_2");
+
+    expect(result.reopenedDemandId).toBe("demand_2");
+    expect(db.demandRequirement.update).toHaveBeenCalledWith({
+      where: { id: "demand_2" },
+      data: { headcount: 3, status: "ACTIVE" },
+    });
   });
 });