passepartout: v0.5.1 — Compilation Hardening

Fixed 3 real compilation errors:
- security-vault.lisp: bare defvar missing opening paren
- embedding-native.lisp: CFFI struct refs updated (llama-mparams→(:struct ...), 19 places)
- symbolic-events.lisp: heartbeat vars + save-memory-to-disk → passepartout:: prefix

Suppressed ~100 harmless cross-skill STYLE-WARNINGs:
- Added grep filter for STYLE-WARNING / WARNING: redefining
  in the pre-compile step of the passepartout bash script

ROADMAP updated: all v0.5.1 items marked DONE.
Test suite: 116/116 (100%)

passepartout

@@ -130,7 +130,7 @@ setup_system() {
          --eval "(push (truename \"$PASSEPARTOUT_DATA_DIR/\") asdf:*central-registry*)" \
          --eval '(ql:quickload :passepartout)' \
          --eval '(ql:quickload :passepartout/tui :silent t)' \
-         --eval '(uiop:quit)' 2>&1 | grep -v '^;' || true
+         --eval '(uiop:quit)' 2>&1 | grep -v '^;\|STYLE-WARNING\|WARNING: redefining' || true
 
     if [ "$NON_INTERACTIVE" = true ]; then
         echo "Configure complete."