installer: embed repo path in global 'mm' launcher and fall back to locating repo from CWD; prefer venv's python3

scripts/bootstrap.sh

@@ -416,18 +416,23 @@ cat > "$USER_BIN/mm" <<'MM'
 #!/usr/bin/env bash
 set -e
 
-# Resolve script path (follow symlinks if possible) and derive repo root dynamically
-SCRIPT="$0"
-if command -v readlink >/dev/null 2>&1; then
-  if readlink -f "$SCRIPT" >/dev/null 2>&1; then
-    SCRIPT="$(readlink -f "$SCRIPT")"
-  fi
+# REPO is injected at install time; if it doesn't look like a project, try to
+# find the repo by walking up from the current working directory.
+REPO="__REPO__"
+if [ ! -f "$REPO/CLI.py" ] && [ ! -f "$REPO/pyproject.toml" ] && [ ! -f "$REPO/setup.py" ]; then
+  CUR="$(pwd -P)"
+  while [ "$CUR" != "/" ] && [ "$CUR" != "" ]; do
+    if [ -f "$CUR/CLI.py" ] || [ -f "$CUR/pyproject.toml" ] || [ -f "$CUR/setup.py" ]; then
+      REPO="$CUR"
+      break
+    fi
+    CUR="$(dirname "$CUR")"
+  done
 fi
-SCRIPT_DIR="$(cd "$(dirname "$SCRIPT")" && pwd -P)"
-REPO="$(cd "$SCRIPT_DIR/.." && pwd -P)"
+
 VENV="$REPO/.venv"
 
-# Prefer a packaged console script in the venv
+# Packaged console script in the venv if available
 if [ -x "$VENV/bin/mm" ]; then
   exec "$VENV/bin/mm" "$@"
 fi
@@ -440,7 +445,7 @@ if [ -x "$VENV/bin/python" ]; then
   exec "$VENV/bin/python" -m medeia_macina.cli_entry "$@"
 fi
 
-# Fallback to system python3, then python (ensure python is v3)
+# Fallback to system python3, then system python (only if it's Python 3)
 if command -v python3 >/dev/null 2>&1; then
   exec python3 -m medeia_macina.cli_entry "$@"
 fi
@@ -453,6 +458,10 @@ fi
 printf "Error: no suitable Python 3 interpreter found. Activate the venv with 'source %s/bin/activate' or install Python 3.\n" "$VENV" >&2
 exit 127
 MM
+
+# Inject absolute repo path into the installed script so global launcher prefers the project venv
+escaped_repo=$(printf '%s' "$REPO" | sed -e 's/[\/&]/\\&/g')
+sed -i "s|__REPO__|$escaped_repo|g" "$USER_BIN/mm" || true
 chmod +x "$USER_BIN/mm"
 
 # Quick verification of the global launcher; helps catch packaging issues early.