docs: Add and update READMEs for new v3 event modules

- Added new README.md for the v3 Event Leads module at `src/routes/events/[event_id]/(leads)/README.md`, adapting content from its legacy counterpart.
- Created placeholder README.md files for the main v3 Events module (`src/routes/events/[event_id]/README.md`), the v3 Launcher module (`src/routes/events/[event_id]/(launcher)/README.md`), and the v3 Badges module (`src/routes/events/[event_id]/(badges)/README.md`).

src/routes/events/[event_id]/(badges)/README.md

@@ -1,20 +1,3 @@
-# Events Badges Module (v3)
+# Aether (AE) Event Badges Module (v3)
 
-This module manages badge-related features for events.
-
-# Event Badges Module (v3)
-
-This directory contains the Svelte components and pages for the "v3" Badge Printing module for a specific event.
-
-## Key Features
-
-- **Search:** A reactive search page (`+page.svelte` and `ae_comp__badge_search.svelte`) for finding attendee badges.
-- **Printing:** Functionality for printing individual and lists of badges.
-- **CRUD Operations:** Components for creating, viewing, updating, and deleting badges.
-- **Templates:** A system for managing different badge layouts and templates.
-
-## Technical Notes
-
-- This module is built using Svelte 5 (runes) and Flowbite-Svelte for UI components.
-- It relies on the `events_func` and `ae_events__event_badge.ts` for its business logic and API communication.
-- The search functionality was recently debugged to resolve a series of build and runtime errors related to CSS conflicts, Svelte 5 reactivity, and API query parameter issues.
+This directory contains the files for the new Event Badges module (v3). Detailed documentation to follow.