docs: correct cutover and redeploy runbooks against the real deployment (#26)

Dry-running CUTOVER.md against production surfaced four things that would
have failed mid-cutover:

- The volume is named after the compose project, which is the lowercased
  directory name (mangabookmark), not the repo name. Both runbooks hardcoded
  bookmarkmanager_bookmarks-data. Derive it from docker instead.
- §1 asserted a clean stop leaves no -wal. compose stop SIGKILLs after 10s,
  and a surviving -wal holds writes bookmarks.db alone does not, so the
  export would silently lose them. Check rather than assume.
- jq is not installed on the server; §5's read-path check now uses python3,
  which the runbook already requires.
- REDEPLOY §1 still listed the pre-split table set, omitting readers and
  sessions from both the \dt output and the pg_restore contents.

Also records the git-pull failure the redeploy hits on a checkout whose
remote is the HTTPS clone URL.

CUTOVER.md

@@ -1,7 +1,7 @@
 # SQLite → Postgres cutover runbook
 
 One-way, one-time. Moves the owner's reading history out of the retired SQLite
-volume (`bookmarkmanager_bookmarks-data`, holding `/data/bookmarks.db`) and into
+volume (`<compose project>_bookmarks-data`, holding `/data/bookmarks.db`) and into
 the Postgres schema the migration runner builds. There is no dual-write period:
 the old database is read once, at cutover, from a **fresh export** — anything
 written to SQLite after the export is lost, so the old API must already be down.
@@ -32,10 +32,10 @@ is dropped) — writing it from the spec below costs less than maintaining it
 would.
 
 Beyond `DEPLOY.md`'s prerequisites (Docker and Compose), this runbook needs
-`python3` on the machine running §3 — its stdlib `sqlite3` module is the whole
-SQLite dependency — and `jq` for the one read-path check in §5. Neither has to
-be the server: §3 only reads the snapshot copy, so it can run on a laptop and
-the resulting `import.sql` be copied over.
+`python3` — its stdlib `sqlite3` module is the whole SQLite dependency, and it
+stands in for `jq` in §5, which is not installed on the server. It does not have
+to run on the server: §3 only reads the snapshot copy, so it can run on a laptop
+and the resulting `import.sql` be copied over.
 
 ---
 
@@ -45,21 +45,34 @@ the resulting `import.sql` be copied over.
 already stale.
 
 ```bash
-cd /opt/bookmarkmanager
+cd ~/mangaBookmark                 # wherever the checkout lives
 COMPOSE="docker compose -f docker-compose.yml -f docker-compose.prod.yml"
-BACKUP_DIR="$(cd .. && pwd)/bookmarkmanager-backups"; mkdir -p "$BACKUP_DIR"
+BACKUP_DIR="$(cd .. && pwd)/$(basename "$PWD")-backups"; mkdir -p "$BACKUP_DIR"
 STAMP=$(date -u +%Y%m%d-%H%M%S)
 
+# The volume is <compose project>_bookmarks-data, and the project name defaults
+# to the lowercased *directory* name, not the repo name — here that makes it
+# mangabookmark_bookmarks-data. Ask Docker instead of typing it out.
+VOL=$(docker volume ls -q --filter name=_bookmarks-data); echo "$VOL"
+
 $COMPOSE stop bookmark-api
 
-# Copy the file straight out of the retired volume. Nothing is writing to it,
-# so a plain copy is consistent — no -wal to worry about after a clean stop.
-docker run --rm -v bookmarkmanager_bookmarks-data:/from:ro -v "$BACKUP_DIR":/to \
+# A clean SIGTERM closes the store, which checkpoints and unlinks the -wal, so
+# bookmarks.db alone is then the whole database. But `compose stop` SIGKILLs
+# after 10s, and a surviving -wal holds writes the main file does not — assert
+# it is gone rather than assuming the shutdown was clean.
+docker run --rm -v "$VOL":/d:ro alpine ls -l /d      # -> bookmarks.db, alone
+
+docker run --rm -v "$VOL":/from:ro -v "$BACKUP_DIR":/to \
   alpine cp /from/bookmarks.db "/to/bookmarks-$STAMP.db"
 
 ls -lh "$BACKUP_DIR/bookmarks-$STAMP.db"
 ```
 
+If `-wal` and `-shm` are still there, the container was killed mid-write. Copy
+all three under the same basename and let SQLite replay the log when §3 opens
+it — copying only `bookmarks.db` silently drops whatever the log still holds.
+
 Work on a **copy** of that file for the rest of this runbook. The export is the
 last line of retreat; nothing below should be able to write to it.
 
@@ -256,7 +269,8 @@ would catch a correct import behind a broken join:
 ```bash
 API=https://bookmark-api.violetcrown.my.id
 TOKEN=$(grep -E '^API_TOKEN=' .env | cut -d= -f2)   # grace-window credential
-curl -s -H "Authorization: Bearer $TOKEN" $API/bookmarks | jq 'length'   # -> 29
+curl -s -H "Authorization: Bearer $TOKEN" $API/bookmarks |
+  python3 -c 'import json,sys; print(len(json.load(sys.stdin)))'   # -> 29
 ```
 
 ---
@@ -266,7 +280,7 @@ curl -s -H "Authorization: Bearer $TOKEN" $API/bookmarks | jq 'length'   # -> 29
 - **Keep the old SQLite volume for a month.** It is already undeclared in
   compose, so `docker compose down -v` cannot take it. Remove it by hand once
   the Postgres data has been trusted for a while:
-  `docker volume rm bookmarkmanager_bookmarks-data` (see `REDEPLOY.md` §1).
+  `docker volume rm "$VOL"` (see `REDEPLOY.md` §1).
 - **Delete the generator and the working copies:** `rm -rf /tmp/cutover`. The
   timestamped export in `$BACKUP_DIR` is the copy that is kept.
 - **Take the first Postgres dump immediately** — `REDEPLOY.md` §1. Until that

REDEPLOY.md

@@ -59,7 +59,7 @@ network can reach it — so every command below goes in through the container:
 
 ```bash
 $COMPOSE exec -T postgres psql -U bookmarks -d bookmarks -c '\dt'
-# -> bookmarks, schema_migrations, series
+# -> bookmarks, readers, schema_migrations, series, sessions
 ```
 
 Inside the container that connects over the local socket as the `bookmarks`
@@ -99,8 +99,10 @@ you will act as though you have one:
 docker run --rm -v "$BACKUP_DIR":/backup postgres:17-alpine \
   pg_restore --list "/backup/bookmarks-$STAMP.dump" | grep 'TABLE DATA'
 # -> 1234; 0 0 TABLE DATA public bookmarks bookmarks
-# -> 1235; 0 0 TABLE DATA public schema_migrations bookmarks
-# -> 1236; 0 0 TABLE DATA public series series
+# -> 1235; 0 0 TABLE DATA public readers bookmarks
+# -> 1236; 0 0 TABLE DATA public schema_migrations bookmarks
+# -> 1237; 0 0 TABLE DATA public series bookmarks
+# -> 1238; 0 0 TABLE DATA public sessions bookmarks
 
 # 2. Sanity-check the live row count you just captured.
 $COMPOSE exec -T postgres psql -U bookmarks -d bookmarks \
@@ -161,10 +163,12 @@ ls -1t "$BACKUP_DIR"/bookmarks-*.dump | tail -n +31 | xargs -r rm -v
 declared in `docker-compose.yml` any more, which is what keeps `docker compose
 down -v` from taking it with the rest of the stack. It is not the live database
 and nothing reads it — the one-way move out of it is `CUTOVER.md`. Once the
-Postgres data has been trusted for a while, remove it by hand — nothing else will:
+Postgres data has been trusted for a while, remove it by hand — nothing else will.
+Its full name is `<compose project>_bookmarks-data`, and the project name is the
+lowercased directory name of the checkout, so ask Docker rather than typing it:
 
 ```bash
-docker volume rm bookmarkmanager_bookmarks-data
+docker volume rm "$(docker volume ls -q --filter name=_bookmarks-data)"
 ```
 
 ---
@@ -395,6 +399,7 @@ panel works on the phone.
 | `postgres` never leaves `starting`; `bookmark-api` never starts either | The healthcheck (`pg_isready`) is failing and `bookmark-api` waits on it. `$COMPOSE logs postgres` — usually `postgres-data` was initialised by a different major version ("database files are incompatible with server"), or the disk is full. |
 | `pg_restore`: `cannot drop … other objects depend on it` / `being accessed by other users` | Live connections block `--clean`. `$COMPOSE stop bookmark-api` first (§6). If they persist: `$COMPOSE exec -T postgres psql -U bookmarks -d postgres -c "select pg_terminate_backend(pid) from pg_stat_activity where datname='bookmarks' and pid <> pg_backend_pid()"`. |
 | Dump is 0 bytes, or `pg_restore`: `did not find magic string in file header` | You ran `exec` without `-T`. The allocated TTY rewrites newlines in the binary stream and corrupts the archive in flight (§1). |
+| `git pull`: `could not read Username for 'https://…'` | The checkout's remote is the HTTPS clone URL and the server has no credential helper, so the pull prompts into a closed stdin. Switch it to SSH once — `git remote set-url origin ssh://git@gitea.violetcrown.my.id:2222/sulthan/mangaBookmark.git`. Gitea's SSH listens on **2222**, not 22; port 22 is the host's own sshd and answers `Permission denied (publickey)` no matter which key is registered. |
 
 Full first-time setup: `DEPLOY.md`. The one-off SQLite→Postgres move:
 `CUTOVER.md`. Config reference and endpoints: `README.md`.