v0.5.4

PaneFlow v0.5.4 is a chrome polish pass plus two Windows session fixes. The
visual refresh lands on every platform; the session and title-bar fixes are
Windows-only.

Fixed

• The agent-sessions sidebar now populates on Windows. Claude Code, Codex
  and opencode sessions for the open workspace were never listed because three
  things were wrong at once: the project-directory slug kept the drive letter's
  : (so C:\dev\paneflow looked for C:-dev-paneflow instead of the real
  C--dev-paneflow), the working-directory filter was case- and
  separator-sensitive, and the active terminal's cwd was never seeded on
  Windows. All three are fixed, so the sidebar resolves the same sessions your
  agent CLIs actually wrote.
• Terminal tabs and Agents threads no longer take the shell's own path as
  their name on Windows. PowerShell and cmd briefly title their window with
  their executable path (e.g. C:\Program Files\PowerShell\7\pwsh.exe) before
  your profile runs; PaneFlow now ignores a title that is merely a path to an
  .exe and keeps the real label.

Changed

• A chrome refresh across the sidebars, title bar, context menus and
  settings. Hovered and selected rows now share one slightly brighter
  translucent material (closer to Codex/OpenAI's soft highlights), drop-shadows
  are gone for a flatter look, and the docked sessions and files rails use the
  same native window material as the rest of the app instead of a flat dark
  fill. Corner radii are unified across cards, rows and settings controls.
• Quieter logs. A failed update check from a transient network or GitHub
  hiccup, and a diff column superseded by a newer load, now log at debug
  instead of warn; only an actionable update failure (a persistent 4xx) still
  warns.

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Full changelog: v0.5.3...v0.5.4