Add curator Influences tool with import wizard, CRUD, and graph.

CSV/JSON/XLSX mapping wizard expands artist-level rows to all paintings, blocks duplicate file/data imports via content and payload hashes, and documents the workflow in influence-import.md.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/locales/en/home.json

@@ -14,6 +14,7 @@
   "showMoreDebug": "Show more (debug)",
   "checkup": "Checkup",
   "translations": "Translations",
+  "influences": "Influences",
   "curatorRequiredTitle": "Curator access required",
   "curatorRequiredBody": "Sign in as a curator to use this tool.",
   "backToGalleryBtn": "Back to gallery"

client/src/locales/en/influences.json

@@ -0,0 +1,70 @@
+{
+  "title": "Influence links",
+  "back": "← Back to gallery",
+  "tabList": "List",
+  "tabImport": "Import",
+  "tabGraph": "Graph",
+  "loadFailed": "Failed to load influences",
+  "searchPlaceholder": "Search artist, painting, source…",
+  "refresh": "Refresh",
+  "loading": "Loading…",
+  "loadingParse": "Reading file…",
+  "loadingPreview": "Validating influence links…",
+  "loadingCommit": "Importing links into the database…",
+  "loadingSave": "Saving link…",
+  "addEdge": "Add link",
+  "cancelAdd": "Cancel",
+  "total": "{{count}} links",
+  "filtered": "filtered by artist",
+  "clearFilter": "Clear artist filter",
+  "subjectPainting": "Subject painting",
+  "searchPainting": "Search painting…",
+  "sourceType": "Source type",
+  "typeArtist": "Artist",
+  "typePainting": "Painting",
+  "typeMovement": "Movement",
+  "sourceEntity": "Source entity",
+  "searchSource": "Search source…",
+  "notes": "Notes",
+  "saveEdge": "Save link",
+  "addRequiresIds": "Pick a subject painting and a source entity",
+  "colSubject": "Subject",
+  "colSource": "Source",
+  "colType": "Type",
+  "colNotes": "Notes",
+  "colActions": "Actions",
+  "colAction": "Action",
+  "colDirection": "Direction",
+  "delete": "Delete",
+  "confirmDelete": "Delete this influence link?",
+  "noEdges": "No influence links match.",
+  "stepUpload": "1. Upload",
+  "stepMapping": "2. Map columns",
+  "stepPreview": "3. Validate",
+  "stepDone": "4. Done",
+  "uploadHelp": "Choose a CSV, JSON, or XLSX file with influence rows (e.g. Inputs/artist_influences_web_sources.xlsx).",
+  "parseFailed": "Failed to parse file",
+  "previewFailed": "Failed to build preview",
+  "commitFailed": "Failed to commit import",
+  "rowsMissing": "File rows were not returned (too large). Use a smaller file (≤2000 rows).",
+  "fileInfo": "{{name}} · {{rows}} rows · {{format}}",
+  "sheet": "Sheet",
+  "preset": "Mapping preset",
+  "column": "Column",
+  "role": "Role",
+  "sample": "Sample",
+  "backStep": "Back",
+  "runPreview": "Validate & preview",
+  "previewCounts": "Will create {{create}} · skip {{skip}} · row errors {{errors}} · proposals {{proposals}}",
+  "warnings": "{{count}} warnings",
+  "commitImport": "Import {{count}} links",
+  "commitSummary": "Imported {{inserted}} links ({{skipped}} already present or skipped).",
+  "alreadyImportedWarn": "Already imported {{when}} by {{who}} ({{match}}: {{file}}). Commit is blocked unless you force re-import.",
+  "alreadyImportedBlock": "This file or identical data was already imported. Enable “Import anyway” to force, or cancel.",
+  "forceImport": "Import anyway (force — may recreate skipped edges only; existing edges stay unique)",
+  "matchFile": "same file bytes",
+  "matchData": "same mapped data",
+  "searchArtist": "Search artist for neighborhood graph…",
+  "graphEmpty": "Select an artist to visualize influence neighbors.",
+  "graphStats": "{{nodes}} nodes · {{edges}} edges"
+}