Q-W6 review follow-ups: drop stale wav_trim clause, fix stale include comment, idempotent action-table clear, reflow ragged comment, align session.h trailing comments

CLAUDE.md

@@ -64,7 +64,7 @@ There is no hot-reload. Copy the built binary into REAPER's `UserPlugins/` folde
 - `bank_book` — multi-bank registry: an ordered set of banks each wrapping a `BankIndex`. **Pool privileges (un-deletable/un-renamable/un-evacuable, never zero banks) enforced in-model.** Owns create/rename/reorder/delete of named banks, active-bank id, and index-only move/copy/remove of a sample between banks. The JSON round-trip lives in the sibling `bank_book_json` TU (Q-W5 split; serialize/deserialize via a private static `nameKey` seam) — one model, one codec, same public surface.
 - `owned_manifest` — the set of project-relative files the capture path itself created, persisted under the `"owned_files"` ext-state key, so the prune path can distinguish the bank system's own orphans from hand-dropped files.
 - `app_version` — REAPER-free version/channel identity: CMake-sourced semver constant, ext-state stamp value, and the full set of channel-derived identity accessors. All channel strings derive from one `REASAMPLER_CHANNEL_IS_BETA` bit; no scattered `#ifdef`s in the shells.
-- `wav_codec` — chunk walker + layout parse + float32 build + size-field patch + content hashes; the single pure RIFF/WAV owner. (`wav_trim` is now a transitional forwarding alias onto `wav_codec`, kept only so the Q-W2v TUs it feeds compile untouched; retire it once that wave lands.)
+- `wav_codec` — chunk walker + layout parse + float32 build + size-field patch + content hashes; the single pure RIFF/WAV owner (`wav_trim` is retired; `wav_codec` is the sole owner).
 - `provenance` — capture-recipe fingerprint: build/encode/compare a `rsprov1` fingerprint of scope, range, tail, rate/channels, track GUIDs, and FX-chain identity. **A thin reproducibility fingerprint — NOT a serialized chain to restore.**
 - `prune_reconcile` — pure prune core: `pruneOrphans(present, referenced, owned)` computes `(owned ∩ present) − referenced`; the safety-critical "which files are orphans" decision, filesystem-free and hard-tested before any I/O exists. Gains `mergeReferenced(bankRefs, liveInstanceHeldPaths)` (pS-usage) — unions live instance holds into the prune referenced-set so the pure orphan computation includes them.
 - `prune_button` — pure layout/hit-test for the `bank_panel` footer Prune button.