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+# Session handoff — 2026-06-12 (68)
+
+Sixty-eighth handover. Continues directly from handoff-67 (which
+triaged a manual-testing pass into fixes + filed issues). This was an
+**issue-burndown session**: six Gitea issues closed across five
+commits, each landed with the full phased workflow + a `/runda` +
+Devil's-Advocate pass before commit. Net: **six issues closed, five
+commits, +29 tests, zero regressions.**
+
+## §1. State at handoff
+
+**Branch:** `main`. Working tree **clean**; all work committed.
+**Five unpushed commits** (push is the user's step).
+
+**Tests: 2436 passing / 0 failing / 0 skipped / 1 ignored** (the
+long-standing `friendly` doctest). **Clippy clean** (nursery, all
+targets). Breakdown: 1730 lib + 506 integration (`it`) + 200
+typing-surface-matrix. +29 over handoff-67's 2407.
+
+**Commits since handoff-67:**
+```
+ee3ccd8 feat(hint): advertise the optional seed count in the hint panel (#26)
+deb0948 feat(seed): year-as-int + conventional choice-set heuristics (#33, #34)
+fde50ce fix(ui): mark sidebar focus with an accent colour, not bold (#25)
+3d4a0fd fix(render): trim IEEE-754 noise from displayed decimal arithmetic (#32)
+7e4bc12 fix(completion): treat a bare in-scope table alias as an alias, not an unknown column (#31)
+```
+
+## §2. Issues closed this session (all committed, all tested, all `/runda`-reviewed)
+
+Each closed on `git.lazyeval.net/oli/rdbms-playground` with a summary
+comment. The `/runda` pass earned its keep on every one — see the
+"DA caught" notes.
+
+1. **#31 (`7e4bc12`) — bare table alias treated as unknown column.**
+   A bare in-scope table alias in a SQL expression (`… GROUP BY o`,
+   `o` aliasing `FROM Orders o`) got `no such column o on table …` and
+   zero completions. Now: completion offers each FROM source's
+   *qualifier* (alias-if-present-else-table) at a bare `sql_expr_ident`
+   slot; the `matched.len()==0` arm emits a targeted
+   `alias_used_as_column` / `table_used_as_column` hint after the
+   projection-alias check. **DA caught** two real bugs pre-commit: a
+   DSL leak (the hint fired for simple-mode `expr_column` refs, which
+   have no `table.column` syntax) and wrong advice for an
+   aliased-table-by-real-name — both fixed by gating on
+   `role == "sql_expr_ident"` + matching the *effective qualifier*.
+   ADR-0032 Amendment 3.
+
+2. **#32 (`3d4a0fd`) — decimal aggregation float noise.** `decimal`
+   is exact TEXT, but SQLite has no decimal type, so arithmetic
+   coerces to IEEE-754 double; `sum(price*qty)` rendered
+   `298.59999999999997`. Now `format_real_display` (db.rs) rounds REAL
+   to 15 sig figs **for display only**, wired into `format_cell`.
+   **DA caught** a real regression: I'd also wired it into
+   `render_value`, which is a *canonical identity key* for the
+   uniqueness dry-runs (`dry_run_unique`, `check_uniqueness_collisions`)
+   — rounding there would report collisions the exact-valued engine
+   wouldn't. Reverted `render_value` to exact; locked with a
+   regression test. CSV/FK-key/EXPLAIN paths stay exact. ADR-0005
+   Amendment 1.
+
+3. **#25 (`fde50ce`) — sidebar focus accent colour, not bold.** Bold
+   box-drawing glyphs render broken in asciinema casts.
+   `panel_border_style` now uses a non-bold accent colour
+   (`theme.mode_simple`); bold stays fine on text spans. **DA caught**
+   that the issue's "Tier-2 snapshots need re-accepting" was wrong —
+   `render_to_string` is text-only, so no snapshot changed. Added a
+   render-level test that inspects the actual border *cells*.
+   User visually confirmed. ADR-0046 Amendment 1.
+
+4. **#33 + #34 (`deb0948`) — seed heuristics: year-as-int + choice
+   sets.** Two additive D7 catalogue rules. **#33:** `year`/`*_year`/
+   `published`/`founded` → bounded `int` year (1950–2025, or the
+   `dob`-style birth window 1945–2007 for `birth`/`born`/`dob`); new
+   `YearRecent`/`YearBirth` generators. Placed *after* the quantity
+   rule so `year_count` stays a count. **#34:** type-gated `PickFrom`
+   sets for `priority`/`prio`, `severity`, `rating`/`stars`; `status`
+   **deliberately excluded** (user-confirmed on the issue — values too
+   domain-specific). `priority` left `ENUM_TOKENS`. A user `IN`-CHECK
+   still wins. **DA/process caught** that I'd skipped reading the issue
+   *comments* (where the `status` decision + a website cast note lived)
+   — **lesson: always read issue comments**. Also closed a
+   pre-existing column-fill integration-test gap. ADR-0048 Amendment 1.
+
+5. **#26 (`ee3ccd8`) — optional `count` advertised in the hint panel.**
+   At `seed <table> ▮` only `set`/`--seed` chips showed; the optional
+   row count (a bare positional number) was invisible, and the prior
+   `IntroProse` attempt was reverted because `pending_hint_mode` is
+   cleared by the trailing optionals. Now `walk_optional` stashes a
+   skipped inner's `IntroProse` key into a new
+   `WalkContext.surviving_intro_hint` (key + position) before the empty
+   match clears it; a **position guard** (`pos == cursor`) stops it
+   leaking past a later `set …` clause or once the count is given. Tab
+   still cycles the keywords. Prose mentions the count, `.column`
+   column-fill, `set`, and `--seed` (user-chosen scope). **DA caught**
+   a coverage gap (advanced-mode path untested — seed runs in both
+   modes); added the test. ADR-0022 Amendment 7.
+
+## §3. Open issues — next session's candidates
+
+Four open, all on `git.lazyeval.net/oli/rdbms-playground`. **All four
+are interaction/UX design changes that need a decision or two from the
+user up front — none is a pure mechanical fix.** Read each issue body
+**and its comments** before starting (the #33/#34 lesson).
+
+- **#28 — Reconsider relationship prose in `add column` (incidental
+  DDL) confirmations** *(enhancement)*. **Revisits a decided area** →
+  needs a **new ADR** superseding the relevant part of ADR-0016 §5 /
+  ADR-0044 §1. User preference (from the issue): do **not** show the
+  `References:` / `Referenced by:` block in the add-column
+  confirmation. Confirm scope with the user (just `add column`, or all
+  incidental DDL). The highest-ceremony of the four.
+
+- **#27 — Bottom status line: keybindings-only, context- and
+  state-aware; add `mode advanced` to empty hint** *(enhancement)*.
+  Per-nav-focus keybindings (Input vs sidebar), **including transient
+  states** (Tab-cycle, history) per user preference. May warrant a
+  small ADR. Touches `src/ui.rs` rendering + the nav-focus model
+  (ADR-0046).
+
+- **#29 — Command input keystroke support.** Esc / double-Esc to clear
+  a partly-typed command; possibly Ctrl-A/Ctrl-E (Home/End). Relates
+  to the deferred **I1b readline shortcuts** (`requirements.md`).
+  **Needs a key-set decision** from the user before coding.
+
+- **#30 — History brings back all commands in both modes.**
+  Advanced-mode history entries can't replay in simple mode; proposal:
+  if we can distinguish them, prepend `:` to reuse advanced history
+  from simple mode. Interaction design; touches the input-history +
+  mode model (ADR-0003).
+
+No strong ordering. **#28** is the only one that *must* produce an ADR.
+**#29** is closest to "small once the key-set is decided." **#27** and
+**#30** are medium UX work.
+
+## §4. Carried-over follow-up (not a `main`-branch task)
+
+- **Website `seed` cast re-record** (from #34's comment thread). The
+  `website` branch ships a `seed` cast exercising a `tickets` table
+  with `priority`; now that `priority` collapses to `low/medium/high`,
+  the cast should be re-recorded (`cd website && pnpm casts seed`,
+  needs a `../target/debug` binary) so the table tightens. The issue
+  comment notes it is **likely redundant** — casts get a full
+  re-record sweep before publication. Tracked on the `website` branch,
+  **not** here. `website/` is not in the `main` tree.
+
+## §5. Other open roadmap (unchanged from handoff-67 §5)
+
+`seed` is feature-complete (`requirements.md` SD1/SD2 `[x]`, now with
+the #33/#34 catalogue refinements noted inline). User's call:
+
+- **H2 `hint`** — the last A1 gap (its own ADR).
+- **TT5 CI** — test infra exists; no CI workflow yet (the `ci` branch
+  exists — check its state before starting).
+- **TT4 PTY (Tier-4)** — ADR-0008 specifies it; not wired.
+- Larger: **V4 journal**, **tutorial/lesson system** (each needs an ADR).
+
+## §6. How to take over
+
+1. Read handoffs 66 → 67 → 68, `CLAUDE.md`, `docs/requirements.md`.
+2. Confirm green baseline: `cargo test` (expect 2436 pass / 1 ignored)
+   + `cargo clippy --all-targets` (clean).
+3. Pick from §3 (#28/#27/#29/#30). **For each, read the issue body AND
+   its comments** before designing, and **escalate the design fork to
+   the user** before coding — all four have genuine UX decisions. #28
+   needs a new ADR.
+4. Follow the project workflow: phased (requirements → divergent →
+   eval → execute → verify), test-first (failing test before the fix),
+   `/runda` + DA pass before every commit, ADR amendment for any
+   decided-area change + the README index-upkeep rule, and confirm the
+   commit message with the user before committing.
+5. Consider a `cargo sweep` at this milestone (`target/` grows across
+   sessions; see CLAUDE.md "Build hygiene").