The games are over. The hot stove hasn't lit yet. This is the part of the year when a Mets fan's mind wanders — to the shoebox in the closet. Last week we opened 1965, the farewell summer of Casey Stengel, Yogi Berra and Warren Spahn. This week it's 1966 — the first year of the rest of the franchise's life. Casey is gone. Wes Westrum is running the club. And if you read the checklist the way you'd read a box score, you can see 1969 starting to assemble itself, one solo card a