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/maupassant/dump.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+"""Print a range of scenes for reading. Usage: dump.py <first_chunk> <last_chunk>"""
+import json, sys
+chunks = json.load(open(__file__.rsplit('/',1)[0] + '/chunks.json'))
+a, b = int(sys.argv[1]), int(sys.argv[2])
+cur = None
+for i in range(a, min(b + 1, len(chunks))):
+    c = chunks[i]
+    if c['story'] != cur:
+        cur = c['story']
+        print(f"\n########## STORY {cur}: {c['title']} ##########")
+    print(f"\n----- scene {i} (story {cur}) -----")
+    print(c['text'].strip())