chore(eslint): add ESLint toolchain and clean src to strict 0/0 (#1165)

* chore(eslint): add eslint toolchain and configs

* fix(eslint): resolve gradual-config errors (rules-of-hooks, no-empty, prefer-const, …)

* chore(eslint): clear unused vars in config, contexts, app and test

* chore(eslint): clear unused vars in api and music-network

* chore(eslint): clear unused vars in utils

* chore(eslint): clear unused vars in store

* chore(eslint): clear unused vars in cover and hooks

* chore(eslint): clear unused vars in components

* chore(eslint): clear unused vars in pages

* chore(eslint): remove explicit any in src

* chore(eslint): align react-hooks exhaustive-deps

* chore(eslint): zero gradual config on src

* chore(eslint): strict hook rules in store and utils

* chore(eslint): strict hook rules in hooks and cover

* chore(eslint): strict hook rules in components

* chore(eslint): strict hook rules in pages and contexts

* chore(eslint): document scripts ignore in eslint config

* chore(eslint): add lint script and zero strict findings

* chore(eslint): address review round 1 (gradual 0/0, per-site disable reasons)

* chore(eslint): tighten two set-state disable comments (review round 2 LOW)

* chore(nix): sync npmDepsHash with package-lock.json

* docs(changelog): add Under the Hood entry for ESLint setup (PR #1165)

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

src/config/moodGroups.test.ts

@@ -4,8 +4,6 @@ import {
   MOOD_GROUPS,
   OXIMEDIA_MOOD_TAG_IDS,
   TOP_OXIMEDIA_MOOD_TAG_TEST_SCORES,
-  moodScoresFromValenceArousal,
-  topDistinctOximediaMoodTagIds,
   topDistinctOximediaMoodTagIdsFromValenceArousal,
   topOximediaMoodTagIds,
 } from './moodGroups';

src/config/shortcutTypes.ts

@@ -1,7 +1,9 @@
 // Shared types for the shortcut-action subsystem. The contract overview lives
 // in the barrel, `shortcutActions.ts`.
 
-export type TranslateLike = (key: string, options?: any) => string;
+import type { NavigateOptions } from 'react-router-dom';
+
+export type TranslateLike = (key: string, options?: Record<string, unknown>) => string;
 
 /** One bindable slot (in-app OR global). `defaultBinding` is the out-of-box
  * chord, or `null` for "unbound by default". `hidden` keeps the action out of
@@ -12,15 +14,15 @@ export type ShortcutSlot = { defaultBinding: string | null; hidden?: boolean };
  * track-preview is interrupted: 'stop' for explicit UI / in-app keys, 'ignore'
  * for hardware media keys. */
 export type ActionContext = {
-  navigate: (to: string, options?: any) => void;
+  navigate: (to: string, options?: NavigateOptions) => void;
   previewPolicy: 'stop' | 'ignore';
 };
 
 /** Passed to `executeCliPlayerCommand` — the raw `cli:player-command` payload
  * plus a navigate fn. */
 export type CliContext = {
-  navigate: (to: string, options?: any) => void;
-  payload: any;
+  navigate: (to: string, options?: NavigateOptions) => void;
+  payload: Record<string, unknown>;
 };
 
 /** Registry entry for one shortcut action. `inApp` / `global` /