fix(FN-2300): preserve log viewport behavior during streaming

- Update AgentLogViewer to anchor scroll position when new streamed entries prepend while the user is reading older logs
- Keep live-follow behavior near the top and avoid false scroll adjustments when loading older history
- Add focused auto-scroll regression tests covering near-top follow, anchored reading, and history pagination cases
- Improve log readability styling by using theme tokens and consistent text color for normal and thinking log lines
- Resolve release changelog conflicts and retain both existing 0.1.1 notes and FN-2300 changelog entry

packages/cli/CHANGELOG.md

@@ -9,6 +9,7 @@
 - 86fd24e: `fn dashboard` TTY mode now opens on the System tab first so users immediately see host, port, URL, and auth token access details.
 - 585e480: Fix dashboard TUI log navigation: add Home/End shortcuts for jumping to first/last log entry, add Space and e keys as alternatives to Enter for expanding logs, improve word wrap to handle long unbroken tokens (URLs, stack traces) by hard-wrapping them at terminal width.
 - 7d31b21: Fix iOS terminal typing in the dashboard. On touch-primary devices, tapping the terminal opened the on-screen keyboard but keystrokes were silently dropped because the bubble-phase `handleTerminalGestureFocus` handler re-focused the helper textarea and reset its selection during touchstart/pointerdown, disrupting iOS's input-event attribution. The CSS fix in commit c7266b7f already positions the textarea to receive taps natively, so the JS handler is now a no-op on `(hover: none) and (pointer: coarse)` devices and desktop retains click-to-focus.
+- Fix dashboard TUI log viewport row calculation on very small terminals to prevent log lines from overlapping the footer.
 - ff5df16: Fix executor model resolution precedence so project `defaultProviderOverride`/`defaultModelIdOverride` is honored before falling back to global `defaultProvider`/`defaultModelId` across execute, hot-swap, and step-session paths.
 - df2836c: Fix dashboard TUI log behavior so log navigation can reach all entries still present in the ring buffer and streamed merge output is buffered into log lines instead of writing raw fragments into the interactive terminal UI.
 - bbdd11a: Guard SQLite FTS5 usage so Fusion starts cleanly on Node builds whose bundled `node:sqlite` was compiled without FTS5. On affected systems, `fn dashboard` previously crashed on first run with `Error: no such module: fts5` during schema migration. The Database and ArchiveDatabase now probe for FTS5 at startup and skip the virtual table + triggers when unavailable; `TaskStore.searchTasks` and `ArchiveDatabase.search` fall back to LIKE-based scans. Set `FUSION_DISABLE_FTS5=1` to force the fallback on runtimes where FTS5 is present but undesirable.