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/plaintales/claude/batches/s30.json

@@ -0,0 +1,32 @@
+[
+ {
+  "chunk": 250,
+  "story": 30,
+  "summary": "After an epigraph, the narrator's household servant asks for an old polo-ball for his little son, and next day the narrator finds the child wandering in his dining-room.",
+  "predicament": "Someone who works for you asks for a discarded trifle for his small son, and the child soon wanders into your rooms."
+ },
+ {
+  "chunk": 251,
+  "story": 30,
+  "summary": "Startled, the child howls; his father scolds him as a rascal bound for jail; the narrator sends word he is not angry, and the child insists he is not a rascal but a man.",
+  "predicament": "A small child caught where he should not be is scolded harshly by his father, and you must decide how to respond."
+ },
+ {
+  "chunk": 252,
+  "story": 30,
+  "summary": "A formal daily greeting grows up between the narrator and the solitary child, who builds little enclosures of flowers and broken china in the garden.",
+  "predicament": "A small friendship grows up across a wide gap in standing, through daily greetings and a lonely child's games."
+ },
+ {
+  "chunk": 253,
+  "story": 30,
+  "summary": "The narrator accidentally tramples the child's work; someone tells the boy the master was angry; reassured, the child builds grander and grander palaces for months.",
+  "predicament": "Having carelessly ruined a child's work, you learn someone has told him you were angry, and must set it right."
+ },
+ {
+  "chunk": 254,
+  "story": 30,
+  "summary": "One day the child is missing; he has a fever; within a week the narrator meets his father carrying the small body to the burial ground.",
+  "predicament": "A child you had grown quietly fond of falls ill and dies, and you meet his grieving father on the road."
+ }
+]