content audit sec01-06: fixes (audit_content.py + 12 file/card corrections)

- tools/audit_content.py: per-file vs item-title triage (SUSPECT/SMALL/NO-TEXT/NO-CYR)
- sec01: .part removed; 10 files restored .pdf ext (LFS rename); #04/#19/#27 verify notes
- sec02 #16: corrupted double-encoded txt -> clean flib fb2 b/844509; #17/#22 doc verified via catdoc
- sec03 #11: -b epub = Spanish von Franz (Paidós 1983, forged EN OPF) -> bonus label
- sec03 #42: КАРО 2012 'Irish Tales' = EN reader (not RU, not the listed book) -> bonus rename
- sec03 #56: Onians b/c/d/e = Cambridge 24-87KB previews -> labeled
- sec06 #18: filename 1981->1989 (Perera 'Descent to the Goddess' 1989; 1981 = other book)
- sec06 #28: ia Zimmer OCR layer = foreign Devanagari text; images = RKP (p.100 verified)
- sec04 #30: buksmart 2020 = RU/FR bilingual w/ VeryPDF watermarks -> note
- linter: azw3/mobi ext + underscore in fname regex; manifest cross-check ignores off-disk rows;
  8 legacy cards section-order fixed (CR before DL)
- AGENTS.md: 'Content audit (2026-09-25)' lessons section
- check-md: 0/219

sections/02-dreams/SUMMARY.md

@@ -25,7 +25,7 @@ Legend: **✅** ISBN found; **⚠** published but no ISBN (not stated / new ed.
 | 13 | MDR | ⚠ | ✅ (sec01) | — | sec01: 1 pdf | sec01: 1 fb2 |
 | 14 | MHS ch. | ✅ 9780691216393 | 🔶 ch. in «Человек и его символы» | — | sec04: 4 pdf (полная MHS) | sec01: 2 fb2 |
 | 15 | The Living Symbol | ⚠ | ❌ | — | — (restricted) | — |
-| 16 | A Little Course in Dreams | ⚠ | ✅ | ✅ 5-02-017581-1 | — (restricted) | 1 txt (flib) |
+| 16 | A Little Course in Dreams | ⚠ | ✅ | ✅ 5-02-017581-1 | — (restricted) | 1 fb2 (flib) |
 | 17 | Methods in Analytical Psych. | ⚠ (DE) | ✅ | — | — (EN original absent) | 1 doc (flib) |
 | 18 | Jungian Psychotherapy | ✅ 9780429476365 | ❌ | — | 1 pdf (Maresfield 1990) | — |
 | 19 | Dreams (von Franz) | ⚠ | ❌ | — | 3 epub (Shambhala 1991/1998) | — |