docs

docs/implementation.md

@@ -1083,3 +1083,47 @@ because the same 1,000 bars are 3.5 days. The cap was a literal from the
 first live-chart commit, never a setting. Snapshot now sends the store
 (`max_bars_per_tf`). Viewport fetch is the follow-up — do not replace
 one silent number with another.
+
+### 2026-08-16 — two-finger pan jittered because it re-read the live price scale
+
+Mobile pan used `coordinateToPrice` on every move. The first frame shifted
+`manualPriceRange`, so the next sample was in a different scale and fought
+the previous one. Felt like a touch-sampling bug. Mapping is now frozen at
+gesture start (`pricePerPx` from the opening min/max and pane height) and
+applied through `requestAnimationFrame`. One-finger is page scroll; two-finger
+drag pans both axes; pinch still zooms.
+
+The current-price pulse is DOM, not a series. After a pan its Y was still
+the pre-pan coordinate until the next tick. `applyTouchTwo` now repositions
+it from `lastCurrentPrice`.
+
+### 2026-08-16 — restoring chart scroll after a tool wiped mouse pan
+
+`armTool` sets `handleScroll`/`handleScale` to `false` so a draw does not
+also drag the chart. Disarm used to put back only `{ horzTouchDrag: false,
+vertTouchDrag: false }` and `{ pinch: false }`. After a boolean `false`,
+that object replaced the whole option, so `pressedMouseMove` and
+`axisPressedMouseMove` never returned. Desktop vertical click-drag died
+after any tool use. Restore the full mouse-on, touch-off set.
+
+### 2026-08-16 — the rest of the same session, none of it subtle
+
+Written because they were skipped the first time and then asked for.
+
+- Status bar: `BUILD` is the short commit plus container start from
+  `/api/version` (`dev` locally). Config **Extra detail** (off by default)
+  hides FEED, LAST BAR and HELD. LAST BAR is age of `last_bar_t`, not
+  volume; HELD is `bars_held` for the current timeframe.
+- Crosshair time includes weekday. A bar under the cursor shows `O H L C`
+  at the plot's top-left, green/red from close vs open.
+- Drawings list is a short resizable pane with a bottom drag handle
+  (height in `localStorage`). Selecting a drawing on the chart opens the
+  section and scrolls that row into view.
+- Context menu: **Duplicate** (was "Duplicate 10 bars right"). An ended
+  trendline also gets **Extend trendline**, which PATCHes `cutoff_t: null`
+  — `exclude_none` used to drop that clear.
+- Drawings filter has an All TFs select; the text box placeholder is
+  "Filter text".
+- Daily MA bells in Layers, independent of visibility, cooldown not
+  one-shot. Watches in `data/user_prefs.json`. See
+  `docs/plan_dma_alerts.md`.