sec01: SUMMARY Table 3 (publication status at a glance: EN/RU ISBN + DL EN/DL RU) + AGENTS.md rule

- Table 3 mirrors sec04 format: per-item EN/RU ISBN status + actual download counts
  (cross-checked with MANIFEST.md)
- AGENTS.md Phase 5: every completed section SUMMARY.md must include the at-a-glance
  table with legend (✅/⚠/❌/—) and DL EN/DL RU columns

AGENTS.md

@@ -320,6 +320,18 @@ editorial note) vs RU essay/chapter list (koob/livelib/preview). Example: Neuman
 
 **Phase 5 — Book notes + commits** (one commit per completed book or meaningful author gain).
 
+When a section is complete, its `SUMMARY.md` must contain a consolidated
+**"Publication status at a glance"** table (one row per reading-list item) with these columns:
+`# | EN book | EN ISBN | RU book | RU ISBN | DL EN | DL RU`. This is the single
+quick-reference view — it records not just ISBNs but, for each item, whether the EN original
+and the RU translation are actually **downloaded** (file count + format, e.g. "5 pdf", "2 fb2",
+"1 djvu", "1 doc", or "sec04: N pdf" for cross-section items, or "— (restricted)" / "— (absent)" when
+not downloadable). Legend for ISBN columns: **✅** = ISBN found; **⚠** = published but no ISBN
+(not stated / new ed. / OZON-prefix only / truncated); **❌** = no such edition (verified absent);
+**—** = the book itself has no such edition (essay / Standard Ed. vol / pre-ISBN). End the table
+with a one-line totals row (DL EN / DL RU file counts). Cross-check the DL columns against the
+section's `downloads/<nn>-*/MANIFEST.md` so the two never disagree.
+
 Negatives gate (before ❌): author sweep (RSL + libgen + cogito + flibusta) + one title-level
 SearXNG + livelib author page + one shop/retail check. Log every RU query in MISSING.md.