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 # To do
-
-## Trim the state database
-
-From an audit of the database layer and a read-only copy of production on 2026-09-12. The data
-itself was clean: no leftover tables or indexes, 47 free pages, one stray `entry_state` row.
-Check each against the code before cutting it.
-
-- [x] **`migrate()`'s add list.** All eight columns arrived in 0.2.0, and 0.5.0 only supports
-  upgrades from 0.3.0 on. Drop the list and its loop; keep the `retired` drop loop, which a
-  database coming from 0.4.0 still needs. (`src/db.rs`)
-- [x] **`Db::subscribed_feed_ids`.** No callers; its doc says the scanner walks it, and it does not.
-  (`src/db.rs`)
-- [x] **`Db::subscriber_count`.** One caller, which only asks whether it is above zero:
-  `subscriber_counts()?.contains_key(&id)`. (`src/db.rs`, `src/web.rs`)
-- [x] **The `created` columns** on `users`, `subscriptions` and `sessions`. Written on every insert,
-  never read. Add them to `retired` and drop them from the inserts. (`src/db.rs`)
-- [x] **`Managed.orphaned`.** Selected by `managed_feeds()` on every call and never read;
-  `FeedSummary.orphaned` is what the UI uses. (`src/db.rs`)
-
-## Popular
-
-- [x] **Popular lists feeds the way Directory does**: the feeds inside an OPML or a Patreon
-  creator, never the collection itself. (`src/web.rs`, `web/index.html`)
-
-After these: `cargo test`, `node tests/page-smoke.js`, `npx playwright test`. Copy `state.db`
-aside before deploying: `migrate()` drops columns on the first start.