b7b1b71cae
The mobile terminal rendered blank even though the WebSocket was Connected and the shell prompt had already streamed in. Root cause (reproduced live): on the mobile fullscreen layout xterm's CharSizeService can measure a 0-width character cell, so FitAddon.fit() proposes 0 columns/rows and .xterm-screen (plus the WebGL canvas) collapses to 0x0 — prompt bytes arrive and are written into xterm's row DOM but paint into a zero-size box. Renderer-independent and mobile-layout- specific; not fixed by resize/font-size re-fits because prior guards only validate the container width and font load, never the resulting measured screen/cell width. Add guardAgainstCollapsedTerminalScreen (app/utils/terminalPreferences.ts) and arm it from both terminal surfaces (TerminalModal + SessionTerminal) right after their initial fit. While the container has a width but .xterm-screen does not, it forces a genuine DOM-strategy remeasure (forceTerminalFontRemeasure) + fit, re-driven by a ResizeObserver until the screen has a real width. It waits (does not give up) while the container is not yet measurable, is bounded so it never spins, and is disposed on every re-init/close path. Recurrence of FN-7620/FN-7686. - Add isTerminalScreenCollapsed + guardAgainstCollapsedTerminalScreen with tests - Wire + dispose the guard across all xterm (re)init/close paths in both surfaces - Add changeset (patch) and a docs/solutions write-up Note: reproduced via mobile emulation (393px, iPhone UA, forced touch), not a physical device; the guard is the structural fix — confirm on a real device. Fusion-Task-Id: FN-7692 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Changeset Format Guide
Each changeset file in this directory describes one user-facing change for release notes.
Required body format
---
"@runfusion/fusion": minor
---
summary: Add a Command Center productivity control for LOC backfills.
category: feature
dev: Uses the new `fn_backfill_loc` tool; settings key `commandCenter.locBackfill`.
Fields
| Field | Required | Description |
|---|---|---|
summary |
Yes | One line, user-facing, max 120 chars. Describe what changed for the operator. |
category |
Yes | One of: feature, fix, breaking, security, performance, internal. |
dev |
No | Developer or migration detail. Preserved in per-package CHANGELOGs but excluded from distilled release notes. |
Audience
The summary is the only content that appears in end-user release notes by default. Write for Fusion operators — describe behavior, fixes, and what changed. Avoid internal class names, file paths, and implementation detail.
Bump types
patch— bug fixes, internal changesminor— new features, CLI additions, toolsmajor— breaking changes
Validation
Run pnpm check:changesets to validate. The linter runs in the PR-check gate and test:gate. Legacy freeform changesets pass with a warning during the transition period.