Athas v0.9.1-preview.3

• Codify reusable workbench UI conventions by @mehmetozguldev in f0636f3
• Unify editor and terminal tab interactions by @mehmetozguldev in 1eb2082
• Make fullscreen workbench surfaces edge to edge by @mehmetozguldev in 1a25855
• Refine Monaco scrolling and sticky chrome by @mehmetozguldev in 95e1e83
• Restore command palette keyboard navigation by @mehmetozguldev in eda89e1
• Centralize product and service configuration by @mehmetozguldev in f280ed8
• Pin release workflow toolchains by @mehmetozguldev in 7ea0d20
• Persist file-open benchmark traces by @mehmetozguldev in 2fc4127
• Add shared action and avatar primitives by @mehmetozguldev in ca66e54
• Standardize Git command forms by @mehmetozguldev in 9b68ce2
• Refine editor and diff navigation by @mehmetozguldev in 918c011
• Simplify GitHub review surfaces by @mehmetozguldev in f145c98
• Refresh the Athas theme palette by @mehmetozguldev in 583909f
• Unify transparent workbench chrome by @mehmetozguldev in fe6815f
• Constrain tab dragging to tab axes by @mehmetozguldev in 8031d17
• Bump serde_with from 3.19.0 to 3.21.0 in /crates/database by @dependabot[bot] in #727
• Add persistent custom theme tools by @mehmetozguldev in 2155855
• Preserve markdown link destinations by @mehmetozguldev in 838b830
• Polish editor interaction surfaces by @mehmetozguldev in d83a149
• Keep recent editor buffers warm by @mehmetozguldev in e83dbd4
• Upgrade terminal transport compatibility by @mehmetozguldev in 0eb12fa
• Add symbol-aware breadcrumb showing containing function/class by @mmiraly in #725
• Fix symbol breadcrumb pane state by @mehmetozguldev in f1c0547
• Scope project state by workspace runtime by @mehmetozguldev in e2bbf0b
• Remove the Athas editor engine by @mehmetozguldev in 6840ca6
• Move tests into feature-local directories by @mehmetozguldev in 7132b52

Full Changelog: v0.9.0...v0.9.1-preview.3