Type src/ against API and database shapes, fixing implicit anys

Adds .d.ts declarations beside the untyped JS modules imported from
TS (api.js, navConfig.js, adminSchema.js, adminNav.js, src/data/*),
with shapes taken from the server routes and migrations. get/post/
patch/del now return unknown unless the caller names the response.

Fixes found along the way:
- website/email/instagram are bare strings from splitLinks, not Link
  objects; OrganizationDetail's website and email pills rendered with
  no href or label and now link correctly.
- The chapter map falls back to FALLBACK_COLOR for a region with no
  colour instead of painting its tiles black.

Adds defineSection() so each page manifest entry's props are checked
against its own Component.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/data/bannerConfig.d.ts

@@ -0,0 +1,10 @@
+/* Types for bannerConfig.js. */
+
+export type BannerPart = { text: string; href?: string; external?: boolean };
+
+export declare const SITE_BANNER: {
+  enabled: boolean;
+  id: string;
+  content: BannerPart[];
+  dismissible: boolean;
+};

src/data/chapters.d.ts

@@ -0,0 +1,47 @@
+/* Types for chapters.js: GET /organizations rows with their
+   kind-specific details lifted to the top level. */
+
+import type { OrganizationListItem, RegionArea, RegionScope } from "../lib/useContent.ts";
+import type { AreaSlice, RegionAreaRow } from "./mapGrid.js";
+
+export { initialsFor } from "./organizations.js";
+
+export type Region = OrganizationListItem & {
+  scope: RegionScope | null;
+  map_note: string | null;
+  areas: RegionArea[];
+};
+
+export type Chapter = OrganizationListItem & {
+  region_id: string | null;
+  region_name: string | null;
+  region_color: string | null;
+  meets: string | null;
+  started: string | null;
+  /** The map tile this chapter lights up, or null if it has none. */
+  area_code: string | null;
+};
+
+export type Community = {
+  loading: boolean;
+  error: Error | null;
+
+  regions: Region[];
+  regionAreas: RegionAreaRow[];
+  regionById: Record<string, Region>;
+  domestic: Region[];
+  international: Region[];
+  virtual: Region[];
+
+  chapters: Chapter[];
+  chaptersIn: (regionId: string) => Chapter[];
+
+  slices: Record<string, AreaSlice[]>;
+  chapterCounts: Record<string, number>;
+  regionsForArea: (areaCode: string) => Region[];
+
+  areasLabelFor: (regionId: string) => string;
+  subtextFor: (region: Pick<Region, "id" | "map_note">) => string;
+};
+
+export declare function useCommunity(): Community;

src/data/eventData.d.ts

@@ -0,0 +1,27 @@
+/* Types for eventData.js. Rows are GET /events as shapeEvent in
+   server/src/routes/content.js sends them. */
+
+import type { EventType } from "../lib/eventTypes.ts";
+import type { EventListItem } from "../lib/useContent.ts";
+
+export type EventFilter = {
+  section?: string;
+  host?: string;
+  status?: EventListItem["status"];
+  type?: EventType | EventType[];
+};
+
+export declare function useEvents(filter?: EventFilter): {
+  events: EventListItem[];
+  loading: boolean;
+  error: Error | null;
+};
+
+export declare function splitByStatus<T extends { status: string }>(
+  events?: T[],
+): { upcoming: T[]; past: T[] };
+
+export declare function typesPresent<D extends { id: string }>(
+  events?: Array<{ event_type: string }>,
+  declared?: readonly D[],
+): D[];

src/data/feedbackTypes.d.ts

@@ -0,0 +1,7 @@
+/* Types for feedbackTypes.js. */
+
+export type FeedbackType = { id: string; label: string; hint: string };
+
+export declare const FEEDBACK_TYPES: FeedbackType[];
+
+export declare function feedbackTypeLabel(id: string): string;

src/data/mapGrid.d.ts

@@ -0,0 +1,51 @@
+/* Types for mapGrid.js. */
+
+import type { RegionArea } from "../lib/useContent.ts";
+
+export declare const GRID_COLS: number;
+export declare const GRID_ROWS: number;
+
+export declare const AREA_NAMES: Record<string, string>;
+
+/** One tile: a state, or a band such as CANADA with a span. */
+export type MapArea = {
+  code: string;
+  name: string;
+  col: number;
+  row: number;
+  span: number;
+  isState: boolean;
+};
+
+export declare const AREAS: readonly MapArea[];
+export declare const AREA_BY_CODE: Record<string, MapArea>;
+
+/** A region_areas row flattened with its region, as buildAreaSlices takes it. */
+export type RegionAreaRow = RegionArea & { region_id: string };
+
+/** One region's share of a tile. */
+export type AreaSlice = {
+  regionId: string;
+  name: string;
+  color: string | null | undefined;
+  share: number;
+  edge: RegionArea["edge"];
+  note: string | null;
+};
+
+type Locatable = {
+  is_online?: boolean;
+  country?: string | null;
+  state_code?: string | null;
+};
+
+export declare function areaForChapter(chapter: Locatable | null | undefined): string | null;
+
+export declare function buildAreaSlices(
+  regionAreas?: RegionAreaRow[],
+  regions?: Array<{ id: string; name: string; color?: string | null }>,
+): Record<string, AreaSlice[]>;
+
+export declare function countChaptersByArea(chapters?: Locatable[]): Record<string, number>;
+
+export declare function areasLabel(regionId: string, regionAreas?: RegionAreaRow[]): string;

src/data/organizations.d.ts

@@ -0,0 +1,21 @@
+/* Types for organizations.js. Rows are GET /organizations as
+   shapeOrganization in server/src/routes/content.js sends them. */
+
+import type { OrgKind } from "../lib/hrefs.ts";
+import type { OrganizationListItem, RegionArea } from "../lib/useContent.ts";
+
+export declare function useOrganizations(kind?: OrgKind): {
+  organizations: OrganizationListItem[];
+  loading: boolean;
+  error: Error | null;
+};
+
+export declare function orgPath(
+  org: { id: string; kind?: string | null } | null | undefined,
+): string | null;
+
+export declare function areasSentence(
+  areas?: Array<Pick<RegionArea, "area_code" | "note">>,
+): string;
+
+export declare function initialsFor(name?: string): string;