add SREBOT, SHARED, TSSBOT contents (fixup for #1223)

PR #1223 only staged the deletions of the old paths because the new
top-level directories were still untracked when the commit was authored.
This commit adds the actual restructured tree: SREBOT/ (existing bot),
SHARED/ (vromfs, data_parser, ICONS/MAPS/FONTS, DAGOR_FILES,
update_game_files), and TSSBOT/ (skeleton).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/public/robots.txt

@@ -0,0 +1,8 @@
+# Robots.txt for Toothless SQB Bot Website
+# This file prevents web crawlers from scraping the site
+
+User-agent: *
+Disallow: /
+
+# Block all crawlers from all content
+# This includes search engines, scrapers, and bots