feat(G-08): chapter field uses live datalist from resource.chapters

All chapter text inputs now show autocomplete suggestions from the
database (distinct chapter values from active resources) via HTML
<datalist> wired to trpc.resource.chapters:

- ResourceModal: chapter input
- RateCardsClient: rate card line chapter input
- EffortRulesClient: effort rule chapter input
- ExperienceMultipliersClient: replaces hardcoded CHAPTER_PRESETS
  with live data, falls back to presets when no data available

Also revert blueprintRolePresetsInputSchema to z.array(z.unknown())
to restore compatibility with StaffingRequirement[] call sites.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/src/components/resources/ResourceModal.tsx

@@ -203,6 +203,7 @@ export function ResourceModal({ mode, resource, onClose, onSuccess }: ResourceMo
   const { canManageUsers } = usePermissions();
   const utils = trpc.useUtils();
 
+  const { data: chapters } = trpc.resource.chapters.useQuery(undefined, { staleTime: 60_000 });
   const { data: availableRoles } = trpc.role.list.useQuery(
     { isActive: true },
     { staleTime: 60_000 },
@@ -441,7 +442,11 @@ export function ResourceModal({ mode, resource, onClose, onSuccess }: ResourceMo
                   placeholder="Engineering"
                   value={form.chapter}
                   onChange={(e) => setField("chapter", e.target.value)}
+                  list="rm-chapter-list"
                 />
+                <datalist id="rm-chapter-list">
+                  {chapters?.map((c) => <option key={c} value={c} />)}
+                </datalist>
               </div>
             </div>