Many enhancements: node/edge editing, formula columns, selection panel, Github check before save, mobile UX & pre-production CI...

[JeanGarf]

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Summary of changes (d906a95 → 627860e)

This range covers the full set of changes accumulated on this fork since the base commit, spanning many feature/fix branches merged into develop and periodically promoted to main_jg.

Save & session

• Fix GitHub file being overwritten after creating a new workspace (Critical Bug)

• Add a save icon next to "Workspace", greyed out until there are unsaved changes

• Persist session settings (layout & metrics parameters) together with the graph

• Warn before editing a GitHub file that has become stale, checked as soon as the create/edit popup opens

• Re-arm the freshness check every ~1 minute (down from 5) and re-check before every save

• Fix a save deadlock and add an "Overwrite" button to the conflict popup

• Save-conflict popup: all 3 buttons visible on mobile, "Keep" selected by default

• Fix a reload loop (the internal reference date wasn't refreshed after Reload)

• Disable the HTTP cache on gist reads (getFile / getFileContent)

• Fix a freshness false positive: memorize the open date from the same detail endpoint used by the periodic checks, instead of the list endpoint; add a 1s tolerance to absorb transient GitHub timestamp inconsistencies

• Stop flagging a remote change that isn't one (real content comparison, not date alone)

• Fix the two remaining root causes of false "modified on GitHub" alerts: fingerprint mismatch between sent and remote-returned bytes, and an un-persisted "keep my changes" acknowledgment causing repeated re-warnings

• Open from GitHub: the last opened file is now really preselected (not just visually), so "Open" works immediately

Node & Edge editing

• Avoid Gephi Lite to crash when deleting an Edge [Deleting Edge makes Gephi lite to crash #318] (critical bug)

• Prevent creation of duplicate nodes/edges

• Support changing edge extremities (source/target) via updateEdge, add a swap button in the edit form, and an "Invert arrow's direction" menu item [Add button to invert Source and Target of an Edge #321 ]

• Pre-fill default attribute values on node/edge creation [Default value for attributes #326 ]

• Auto-focus the first empty field in node/edge modals

• Numeric attributes: cross-platform +/− stepper

• Add a validation button in the modal header and duplicate the OK button in the modal footer (espacially for Android)

• Fix edge weight resetting to 1 on creation [weight field is reseted to 1 #322 ]

• Move ID field to the end of node/edge create/edit forms and data columns; move x/y position fields to the end of the edit form

• Fix Escape not closing the node/edge create/edit popups

• Confirm before losing unsaved input when closing the editor (Back button, Escape, click-outside, and both close crosses all go through the same confirmation)

Formula (scripted) columns & data columns

• Scripted columns: persisted script, live recompute, editable label, and a "Freeze values" action to materialize computed values into a static attribute

• Add automatic "Update Date" / "Creation Date" columns, with backfill for graphs already loaded in session

• GEXF export now materializes formula column values

• Rename "Delete attribute" → "Delete column"; rename "Identifier" → "ID"

• Fix the Label caption for scripted attributes: back to a plain fixed "Label" instead of computing it from the current display label (Appearance)

Selection panel & Graph view

• Add a title and selected-item count to the selection panel;
• Make selected nodes/edges clickable to locate them
• Click a node's label to locate it;
• Add quick-action icons (locate, select neighbors, edit, invert direction, delete);
• Add icons to create an edge from a node and select a node's edges
• Sort selected edges by source, target, then label; show only endpoint labels for a selected edge and refocus dimming on it
• Improve camera framing when locating an edge; unify multi-edge zoom between table and panel (mobile-aware); fix excessive zoom-out on multi-node framing
• Scroll the selection panel to top after locating an item
• Visualize the shortest path between two selected nodes
• Long-press to add a node or edge to the selection (touch equivalent of Ctrl-click)
• Mobile: fold the selection panel without losing the selection
• Selection panel: toggle between alphabetical and size sort, persisted per item type

Search

• Made the main fuzzy search robust to involuntary focus loss on Android
• Fixed the clear cross not closing the results list on Windows, and made it reappear automatically on Android
• Touch-friendly fuzzy search, persistent results, browser autocomplete hidden
• Clear cross: focus returned to the field, and the cross always visible
• Persistent fuzzy search text and clearable fields in the editor
• Pre-fill node/edge creation with the text typed in the fuzzy search
• Close the results dropdown when another panel or popup takes its place (it used to keep floating on top)

Data tables

• Locate a node/edge by clicking from the data tables
• Add Source/Target label columns [In data view, edge mode, Create column Source Label and Target Label #320 ] and move ID columns to the end (edge view, then node view)
• Search edges by source/target labels, not just internal IDs
• Keyboard navigation between cells, plus a cancel button
• Align the number field's stepper with the check button, not the cross

Filters

• Reorder the filters panel and support scripted attributes as filterable
• Fix the displayed From/To range-filter placeholder values
• Add a "Based on filtered values" checkbox for size min/max interpolation
• Left panel: clarify when filters are active
• Make filtered items readable and consistent everywhere (funnel icon, selection, dimmed rendering)
• A filtered edge also dims both its endpoints

Color palette

• Sort the color legend alphabetically and keep existing colors when a new category is added
• Remove obsolete categories from the palette; sync the palette when data changes, not only when fields change

Mobile & navigation

• Add mobile header with node/edge creation icons; expand the Workspace toolbar by default on mobile
• Fix the Layout submenu appearing unexpectedly on mobile
• Android Back button closes the popup instead of navigating; prevent Back from popping Graph/Data views or exiting the app with unsaved work; warn before leaving the app with unsaved changes
• Add a "+" button to create a node directly from the bottom bar, between the panel-close button and "Graph"

Default labels

• Use ID as the default label for nodes/edges; don't show the ID when "No label" is selected

Pre-production banner & CI

• Add CI deployment of pre-production to GitHub Pages from develop; configure GitHub Pages for this fork; grant contents:write permission to the deploy workflow
• Move the pre-production banner to the top of the graph; detect preprod via URL

Misc / internal

• Factor the duplicated data-creation menu into a shared constant; add it to the Graph view above Spatialisation [Data Creation Menu also on Graph View #319 ]
• Refresh the filtered graph cache on node/edge data changes, not only on fullGraph reference changes
• Documentation: factoring rule (avoid divergent behavior across call sites) and feature-branch sync rule (merge --no-ff)
• Show the build commit hash and date below the version number in the About popup, so the running version can be checked at a glance