docs: close out compose and send, and drop the v1/v2 split

Task 13 of item 123, the documentation that was left when the code was
finished.

The README claimed "sending is not implemented. Compose, reply, forward and
send are planned for v2 and need a companion send script that does not exist
yet", which had been false for three days. It also documented none of
`trash`, `send_command` or the `[compose]` section: `trash` has been effectively
mandatory since item 103 and its absence breaks Delete, so a user reading only
the README could not configure a working install. Both are item 122, which
closes with this.

Every default in the new [compose] block was read out of config.h rather than
from the prose around it, which was worth doing: send_html defaults to TRUE
and the first draft of this documented it as false, and the key is
autosave_interval_ms rather than the autosave_delay_ms that reads more
naturally.

The v1/v2 language is retired rather than updated. The project follows semver
on its user-visible surface and those labels described a scope split that
stopped being true when compose shipped. CLAUDE.md says so explicitly rather
than deleting the sentence, since the older spec and plan documents still use
the phrase and are historical records: read it there as "before compose".

CLAUDE.md's architecture diagram listed none of the compose units. It does
now, and it distinguishes the classes from the namespaces, because most of
them are namespaces of free functions over values: the markdown, the MIME
assembly and the account-picking are all testable without a widget. There is
no FormatToolbar class, which the first draft of this diagram invented, and
that is the exact mistake the paragraph under it already warns about for
QueryBar and AttachmentBar.

Also records item 148 from the notes: Ctrl+W does not close the composer.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q2koFevoSxTLhfexJTZWQd

1 files changed, 3 insertions, 2 deletions

diff --git a/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md b/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md
index 61b73c5..e008641 100644
--- a/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md
+++ b/docs/superpowers/plans/2026-08-03-post-0.1.0-usability.md
@@ -188,8 +188,8 @@ taking that too literally.
 | 119 | The unsynced-changes count cannot be opened to see what it counts | information | S | open, 2026-08-19, from the notes. One of the four things it sums carries no message ids at all, so a list cannot be complete without a change to how the count is kept |
 
 | 121 | The thread list shows nothing while a query is running | feedback | S | open, 2026-08-20, from the notes. Follows item 74, which fixed the status-bar half and left the list itself blank |
-| 122 | The README documents a version of the app that no longer exists | documentation | M | open, 2026-08-20, from the notes. Delete-to-trash is entirely undocumented, including a config key a user must now set |
-| 123 | Sending mail is not designed | v2 | L | **specified** 2026-08-20, on branch `compose-and-send`. Design in `docs/superpowers/specs/2026-08-20-compose-and-send-design.md`; read that, not this row. Send is a per-account `send_command` on stdin, so the no-network-protocol rule stands. Composer is a separate window, body is markdown via cmark-gfm, drafts autosave to the account's drafts folder. Tasks 1 to 12 of 13 built 2026-08-20 to 2026-08-22; task 13, the close-out, is the remainder. **Never hand tested**: nothing had wired a composer to an action until task 12, so no composer has yet been opened by a human. Twenty-two defects were found in the plan's own draft code across tasks 4 to 12, so treat every code block in it as a draft |
+| 122 | The README documents a version of the app that no longer exists | documentation | M | **done** 2026-08-23, unreleased, inside item 123 task 13. `trash`, `send_command` and the whole `[compose]` section were undocumented; a Composing section is added and "sending is not implemented" removed. Every default was read from `config.h` rather than from the prose, which caught `send_html` documented as false when it defaults to true |
+| 123 | Sending mail is not designed | v2 | L | **specified** 2026-08-20, on branch `compose-and-send`. Design in `docs/superpowers/specs/2026-08-20-compose-and-send-design.md`; read that, not this row. Send is a per-account `send_command` on stdin, so the no-network-protocol rule stands. Composer is a separate window, body is markdown via cmark-gfm, drafts autosave to the account's drafts folder. Tasks 1 to 13 of 13 built 2026-08-20 to 2026-08-23; task 13 closed the documentation out and retired the v1/v2 split, which semver had made meaningless. **Hand tested 2026-08-22 and 2026-08-23** against a fake send command: New, Reply and Forward all send, a forwarded attachment survives intact, and the sent copy is filed. Found two defects, both fixed (the orphaned composer, and sent mail carrying `inbox`). Twenty-two defects were found in the plan's own draft code across tasks 4 to 12, so treat every code block in it as a draft |
 
 | 124 | The worker reads the index directory as the mail root | defect | S | **done** 2026-08-20, unreleased. `mailRootOf()` over `NOTMUCH_CONFIG_MAIL_ROOT`, correct under both layouts. Verified by migrating the developer's own index to NVMe the same day: cold start 38.6 s to 0.67 s |
 
@@ -217,6 +217,7 @@ taking that too literally.
 | 145 | Cc and Bcc are permanent rows on every composer | presentation | S | open, 2026-08-23, from the notes. Verified: both are unconditional `form->addRow` calls. Most messages use neither. Collapse behind a disclosure next to To:, expanded automatically when a draft or a reply already carries a value |
 | 146 | The unsynced-changes count cannot be opened to see what it counts | information | S | **duplicate of 119**, recorded 2026-08-23 from the notes. Same request, and 119 already carries the blocker: one of the four things the count sums holds no message ids, so a list cannot be complete without changing how the count is kept |
 | 147 | Toggle unread reads the same whichever way it will go | presentation | S | **duplicate of 99**, recorded 2026-08-23 from the notes. The notes ask for exactly what 99 describes: "Mark as read" on an unread message and the reverse. 99 already records that the label is harder than it looks, since a multi-row selection has no single direction |
+| 148 | Ctrl+W does not close the composer | discoverability | XS | open, 2026-08-23, from the notes. Verified: nothing binds `Ctrl+W` anywhere, and the composer has no close action of its own. Belongs with item 21's table rather than bound in isolation |
 
 Sizes are rough: XS under an hour, S a sitting, M a session.