Stabilize TUI refresh, scrolling, and responsive layout

README.md

@@ -401,7 +401,7 @@ Run `codeburn` for the dashboard, or use a subcommand below. Most commands also
 | `codeburn report -p all` | Every recorded session |
 | `codeburn report --from 2026-04-01 --to 2026-04-10` | An exact date range |
 | `codeburn report --format json` | Full dashboard data as JSON, printed to stdout |
-| `codeburn report --refresh 60` | Auto-refresh every 60s (default 30s; `--refresh 0` disables) |
+| `codeburn report --refresh 60` | Auto-refresh every 60s (the minimum and default; `--refresh 0` disables) |
 
 **Status & export**
 
@@ -473,7 +473,7 @@ Sync sends token counts, costs, models, and projects, never prompts or code. Thi
 | `codeburn models --task feature` | Filter to feature-development work |
 | `codeburn models --provider claude` | Filter to a single provider |
 
-Left/right arrow keys switch between Today, 7 Days, 30 Days, Month, 6 Months, and Lifetime (use `--from` / `--to` for an exact historical window). The main Daily Activity panel always shows scrollable full history: use up/down to move one day, Page Up/Page Down (or Shift+Space/Space) to page, and `g`/`G` to jump to either end. These keys update the panel in place instead of moving terminal scrollback. Press `q` to quit, `1` `2` `3` `4` `5` `6` as period shortcuts, `c` to open model comparison, or `o` to open optimize. The dashboard auto-refreshes every 30 seconds by default (`--refresh 0` to disable). It also shows average cost per session and the five most expensive sessions across all projects.
+Left/right arrow keys switch between Today, 7 Days, 30 Days, Month, 6 Months, and Lifetime (use `--from` / `--to` for an exact historical window). Up/down scroll the full dashboard one line, Page Up/Page Down move one screen, and Home/End jump to either end. The main Daily Activity panel shows 10 dates from scrollable full history: use `j`/`k` to move one day, Shift+Space/Space to page, and `g`/`G` to jump to either end. Panels flow in the same order across three columns at maximum width, two at medium width, and one when narrow. In the three-column layout, all panels widen equally by one character for every three additional terminal columns until the dashboard reaches the lesser of 256 characters or the widest renderable source row. Press `q` to quit, `1` `2` `3` `4` `5` `6` as period shortcuts, `c` to open model comparison, or `o` to open optimize. The dashboard refreshes in place at most once per minute by default (`--refresh 0` to disable) without changing the active view or scroll position. It also shows average cost per session and the five most expensive sessions across all projects.
 
 </details>
 

SUBMISSION.md

@@ -0,0 +1,27 @@
+# Submission Statement
+
+## Proposed title
+
+Fix TUI refresh stability, scrolling, and responsive dashboard layout
+
+## Summary
+
+- Keep the active Optimize view mounted during background refreshes, prevent loading-frame flashes, and limit automatic data refreshes to no more than once per minute.
+- Pin the dashboard to the top of a terminal-sized viewport, support line and page scrolling across the full application, and preserve the scroll position through refreshes and resize rerenders.
+- Render dashboard panels in a stable 3/2/1-column order, with left-aligned bars, justified metric columns, readable headings, and ten visible Daily Activity rows.
+- Spell out the project `session` heading and render full model costs whenever the panel has enough space.
+- Reflow on the first resize frame at the 135/134 and 90/89 breakpoints, preserve the dashboard above 256 terminal columns, and cap its width at the lesser of 256 columns or the current data's renderable width.
+
+## Testing
+
+- Ghostty: tested real CodeBurn data at 135, 134, 90, 89, 256, 300, and 342 columns.
+- Dashboard suite: 39 tests passed, including one-, two-, and three-column viewport scrolling.
+- Typecheck: `npx tsc --noEmit` passed.
+- Production build: `npm run build` passed.
+- Live PTY: at 160 columns, Page Down revealed the lower panels and Page Up restored the pinned header.
+- Diff hygiene: `git diff --check` passed.
+- Full suite: 2,495 tests passed. The run retains two unrelated Copilot parser failures, one unrelated durable-total parity failure, and 26 missing-`jsdom` environment errors.
+
+## Evidence
+
+Live Ghostty captures verify immediate 3→2 and 2→1 breakpoint reflow and a populated, capped dashboard at 342 columns. Attach `live-controlled-boundaries-contact-sheet.png` to the pull request.