Plan Measure v2.6.0

What's new

• Added portable .planmeasure project import and export, including the source PDF and complete project state, with validation and safe local persistence. (#154, #112)
• Added bounded undo and redo history for measurement, scale, and classification edits. (#151, #106)
• Added annotated PDF export that preserves the original PDF pages and overlays currently visible measurement geometry and value labels. (#156, #113)
• Added a local project library so users can keep and reopen multiple PDF plans. (#153, #111)

Improvements and fixes

• Wait for saved project summaries to refresh before a successful PDF or project activation resolves, keeping project state synchronized with persistence. (#155)

Validation

• Automated tests, lint and production build passed.
• GitHub Pages deployment verified for 92c6a48.
• Workflow run.