story-to-pack: add the corpora and the catalogue v2/v3

Fourteen corpora split and classified: aesop, bierce, chekhov, holmes,
keefe, lawson, lorimer, maupassant, nobody, plaintales, poe, torchy,
wallingford and winesburg, each with its splitter and the hand-written
groups and pages; catalogue v2 and v3; and the shared splitters
gutenberg_chunks.py, se_split.py and se_build.py.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019rwKTmug58sEsJ72AuWsEi

tools/story-to-pack/probe/nobody/claude/batches/s15.json

@@ -0,0 +1,26 @@
+[
+ {
+  "chunk": 101,
+  "story": 15,
+  "summary": "Pooter breaks a hand-mirror and Carrie foresees misfortune; Lupin, agitated, reports that the shares he advised have collapsed but that he sold his father's for £2, which Pooter takes for a profit until Lupin explains he has lost £18 of his £20, and Cummings and Gowing everything.",
+  "predicament": "A father who invested on his son's confident tip learns the shares have collapsed, and at first mistakes his loss for a profit."
+ },
+ {
+  "chunk": 102,
+  "story": 15,
+  "summary": "Lupin hints his employer has vanished; Gowing arrives cheerful, Lupin reveals he never had any money in the shares himself, and Gowing says he lost nothing because he persuaded Cummings to take his share.",
+  "predicament": "A father learns his son risked none of his own money on the tip he urged on everyone, and a friend offloaded his share."
+ },
+ {
+  "chunk": 103,
+  "story": 15,
+  "summary": "When Cummings rings, Lupin and then Gowing climb out of the parlour window to avoid him, and Pooter is left to console him and send out for his new health spirit; next morning the paper reports that Lupin's employer has absconded.",
+  "predicament": "A son and an old friend escape through a window from a man ruined by their tip, leaving the father to face him."
+ },
+ {
+  "chunk": 104,
+  "story": 15,
+  "summary": "Lupin shrugs at his firm's failure but is crushed by a letter saying Daisy is to marry Murray Posh; as he leaves he smiles at the consolation that, on his advice, Posh put £600 into the collapsed shares.",
+  "predicament": "A son who has lost his post and his intended on the same morning consoles himself that his rival lost money on his advice."
+ }
+]