Keep audit/ and /meta ignores; only remove dead submodule refs

audit/ and /meta are forward-looking guards for directories that may be added, like /out and /cache; removing them would publish those files and risk reuse lint. Only .gitmodules and foundry.lock are structurally dead (no-submodules gate).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: thedavidmeister

.soldeerignore

@@ -8,11 +8,13 @@
 .soldeerignore
 .vscode
 CLAUDE.md
+/audit
 /cache
 /dependencies
 /flake.lock
 /flake.nix
 /foundry.toml
+/meta
 /out
 /remappings.txt
 /slither.config.json

REUSE.toml

@@ -7,6 +7,7 @@ path = [
     ".vscode/**/",
     ".coderabbitai.yaml",
     ".gitignore",
+    "audit/**/",
     "CLAUDE.md",
     "README.md",
     "flake.lock",