phase: 115_doc_draft_discard

All green — this was the final verification pass; everything from the four completed tasks was already in the working tree and verified.

**Phase 115 — Doc drafts: Discard + DELETE route + title fix — verification report**

- Verified all 4 task deliverables present: DELETE route (`app/api/doc_drafts.py`), Discard UI (`doc-edit.html` + `doc-edit.js` + `.discard-draft` CSS), title fix (`defaultDocTitle(wrap)` pairing + `saveAsDoc` call site), and all test pins (integration, frontend unit, E2E). No code changes needed.
- **Completion criteria:**
  1. ✅ Orphaned draft discardable from edit screen; row gone — `test_delete_removes_row_and_invalidates_token` (204 → GET 404), unknown-token 404, admin-gate 403 on all routes, E2E `test_discard_draft_from_edit_screen` all pass.
  2. ✅ Title after retry redo = redone answer's own question — E2E `test_save_title_is_the_redo_question_after_retry` passes.
  3. ✅ Push flow byte-identical — `git diff` shows only the new DELETE route + module docstring; all 7 existing push tests green.
  4. ✅ `uv run pytest --cov=app` → **2457 passed**, app coverage **99%** (>90%); `uv run pytest tests/e2e/test_save_doc_session.py -v --no-cov` → **4 passed**; `uv run ruff check .` → clean; `uv run pyright` → 0 errors.
  5. ⏳ Commit + phase-dir move left to the harness (per executor rules, no `git` run; all changes left in the working tree).
- No defects found; no deviations.
- Next pending phase: none in `todo/` other than this one (`115_doc_draft_discard` is the last).

frontend/assets/styles.css

@@ -4430,7 +4430,8 @@ details.thinking .thinking-text ul { margin: 0 0 0.5rem; }
 }
 
 /* Actions row: the primary Push button (brand, dark ink on brand
-   5.2:1 — never white on brand) + the back link; wraps at narrow
+   5.2:1 — never white on brand) + the Discard control (phase 115 —
+   the secondary destructive action) + the back link; wraps at narrow
    widths. */
 .doc-edit-actions {
   display: flex;
@@ -4455,6 +4456,37 @@ details.thinking .thinking-text ul { margin: 0 0 0.5rem; }
 #push-doc-btn:hover:not(:disabled) { background: var(--brand-hover); }
 #push-doc-btn:disabled { opacity: 0.6; cursor: wait; }
 
+/* Phase 115 (task 02): the Discard control — the SECONDARY destructive
+   action, visually subordinate to the brand primary (the ghost family
+   of .steering-delete / .tuning-delete): ink-soft on transparent
+   (5.1:1 on --surface — more on the darker --bg canvas) with the
+   --line border; hover joins the err family (err-ink on err-bg 9.3:1,
+   the err-line border — the state stays text + color, never color
+   alone); the 44px touch floor, the global 3px :focus-visible ring,
+   and the :disabled state is the "Discarding…" in-flight affordance. */
+.discard-draft {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 44px;
+  border: 1px solid var(--line);
+  border-radius: var(--radius-sm);
+  background: transparent;
+  color: var(--ink-soft);
+  font: inherit;
+  font-weight: 600;
+  font-size: 0.85rem;
+  white-space: nowrap;
+  padding-inline: 1rem;
+  cursor: pointer;
+}
+.discard-draft:hover:not(:disabled) {
+  background: var(--err-bg);
+  color: var(--err-ink);
+  border-color: var(--err-line);
+}
+.discard-draft:disabled { opacity: 0.6; cursor: wait; }
+
 /* The success status line (role=status): the ok family (ok-ink on
    ok-bg 10.6:1) when a push outcome has landed — min-height holds the
    line's space so the layout never jumps when the text lands. Empty