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/api/src/router/vacation.ts

@@ -82,7 +82,7 @@ export const vacationRouter = createTRPCRouter({
     .input(
       z.object({
         resourceId: z.string().optional(),
-        status: z.nativeEnum(VacationStatus).optional(),
+        status: z.union([z.nativeEnum(VacationStatus), z.array(z.nativeEnum(VacationStatus))]).optional(),
         type: z.nativeEnum(VacationType).optional(),
         startDate: z.coerce.date().optional(),
         endDate: z.coerce.date().optional(),
@@ -93,7 +93,7 @@ export const vacationRouter = createTRPCRouter({
       const vacations = await ctx.db.vacation.findMany({
         where: {
           ...(input.resourceId ? { resourceId: input.resourceId } : {}),
-          ...(input.status ? { status: input.status } : {}),
+          ...(input.status ? { status: Array.isArray(input.status) ? { in: input.status } : input.status } : {}),
           ...(input.type ? { type: input.type } : {}),
           ...(input.startDate ? { endDate: { gte: input.startDate } } : {}),
           ...(input.endDate ? { startDate: { lte: input.endDate } } : {}),