docs: point the three bumpBankGeneration citations at the right line

A prior pass corrected session.h:108 to :114, but :114 is the read accessor;
the bump is at :121. Also corrects a module count in the package doc.

docs/PLAN.md

@@ -2366,7 +2366,7 @@ These bind every track in this phase, in addition to the plan-wide set above.
   touching it must **cite, not restate**.
 - **Export is read-only against the project.** No ext-state write, no `bumpBankGeneration()`,
   no undo point. Import does the opposite: it bumps the generation
-  (`src/shell/persist/session.h:114`) so live ReaSampler 9000 instances reload, and batches
+  (`src/shell/persist/session.h:121`) so live ReaSampler 9000 instances reload, and batches
   its index mutation into one Ctrl-Z through `persistBankOp`.
 - **All-or-nothing on both sides.** No partial export, no partial import. A truncated
   `.rsbank` must never exist on disk (temp file + atomic rename, the Ψ-W2-T2 precedent); a
@@ -2792,7 +2792,7 @@ fold, it does not add a second one), `origin_ledger` (Ε-W1-T3's).
   remain as orphans until a prune reclaims them — the same designed window a non-empty bank
   delete already produces (`core/model/CLAUDE.md`'s sample-removal section). The user-facing
   summary says so.
-- **`bumpBankGeneration()` on success** (`session.h:114`), so live instances reload.
+- **`bumpBankGeneration()` on success** (`session.h:121`), so live instances reload.
 - **No timeline item is placed. Ever.**
 - **A new FOREVER-STABLE command id**, minted the same way T1's is.