feat(edge_fields): per-field "Hide in views" toggle

src/components/settings/EdgeFieldSettings.svelte

@@ -88,6 +88,38 @@
 					);
 				});
 
+				// Drop transitive rules that reference the removed field —
+				// unlike rename, there's no replacement label to substitute.
+				settings.implied_relations.transitive =
+					settings.implied_relations.transitive.filter(
+						(rule) =>
+							rule.close_field !== edge_field.label &&
+							!rule.chain.some(
+								(attr) => attr.field === edge_field.label,
+							),
+					);
+
+				// Clear any edge source default pointing at the removed field.
+				const sources = settings.explicit_edge_sources;
+				if (sources.tag_note.default_field === edge_field.label)
+					sources.tag_note.default_field = "";
+				if (
+					sources.list_note.default_neighbour_field ===
+					edge_field.label
+				)
+					sources.list_note.default_neighbour_field = "";
+				if (sources.dendron_note.default_field === edge_field.label)
+					sources.dendron_note.default_field = "";
+				if (
+					sources.johnny_decimal_note.default_field ===
+					edge_field.label
+				)
+					sources.johnny_decimal_note.default_field = "";
+				if (sources.date_note.default_field === edge_field.label)
+					sources.date_note.default_field = "";
+				if (sources.regex_note.default_field === edge_field.label)
+					sources.regex_note.default_field = "";
+
 				autosave();
 			},
 
@@ -186,6 +218,17 @@
 
 				autosave();
 			},
+
+			set_hidden: (edge_field: EdgeField, hidden: boolean) => {
+				const target = settings.edge_fields.find(
+					(f) => f.label === edge_field.label,
+				);
+				if (!target) return;
+
+				target.hide_in_views = hidden || undefined;
+
+				autosave();
+			},
 		},
 
 		groups: {
@@ -460,6 +503,22 @@
 						{/each}
 					</select>
 
+					<label
+						class="flex items-center gap-1"
+						title="Hide this field from the Matrix and Tree side views"
+					>
+						<input
+							type="checkbox"
+							checked={field.hide_in_views ?? false}
+							onchange={(e) =>
+								actions.fields.set_hidden(
+									field,
+									e.currentTarget.checked,
+								)}
+						/>
+						Hide in views
+					</label>
+
 					{#each group_labels as group_label}
 						<Tag
 							tag={group_label}

src/components/side_views/Matrix.svelte

@@ -2,7 +2,10 @@
 	import type { BreadcrumbsSettings } from "src/interfaces/settings";
 	import type BreadcrumbsPlugin from "src/main";
 	import { active_file_store } from "src/stores/active_file";
-	import { resolve_field_group_labels } from "src/utils/edge_fields";
+	import {
+		omit_hidden_view_fields,
+		resolve_field_group_labels,
+	} from "src/utils/edge_fields";
 	import { create_edge_sorter } from "wasm/pkg/breadcrumbs_graph_wasm";
 	import ChevronCollapseButton from "../button/ChevronCollapseButton.svelte";
 	import LockViewButton from "../button/LockViewButton.svelte";
@@ -62,9 +65,12 @@
 	});
 
 	let edge_field_labels = $derived(
-		resolve_field_group_labels(
-			plugin.settings.edge_field_groups,
-			settings.field_group_labels,
+		omit_hidden_view_fields(
+			plugin.settings.edge_fields,
+			resolve_field_group_labels(
+				plugin.settings.edge_field_groups,
+				settings.field_group_labels,
+			),
 		),
 	);
 

src/components/side_views/TreeView.svelte

@@ -2,7 +2,10 @@
 	import type { BreadcrumbsSettings } from "src/interfaces/settings";
 	import type BreadcrumbsPlugin from "src/main";
 	import { active_file_store } from "src/stores/active_file";
-	import { resolve_field_group_labels } from "src/utils/edge_fields";
+	import {
+		omit_hidden_view_fields,
+		resolve_field_group_labels,
+	} from "src/utils/edge_fields";
 	import NestedEdgeList from "../NestedEdgeList.svelte";
 	import ChevronCollapseButton from "../button/ChevronCollapseButton.svelte";
 	import ChevronOpener from "../button/ChevronOpener.svelte";
@@ -98,9 +101,12 @@
 	});
 
 	let edge_field_labels = $derived(
-		resolve_field_group_labels(
-			plugin.settings.edge_field_groups,
-			settings.field_group_labels,
+		omit_hidden_view_fields(
+			plugin.settings.edge_fields,
+			resolve_field_group_labels(
+				plugin.settings.edge_field_groups,
+				settings.field_group_labels,
+			),
 		),
 	);
 

src/interfaces/settings.ts

@@ -20,6 +20,7 @@ export type MermaidArrowType = (typeof MERMAID_ARROW_TYPES)[number];
 export interface EdgeField {
 	label: string;
 	mermaid_arrow?: MermaidArrowType;
+	hide_in_views?: boolean;
 }
 export interface EdgeFieldGroup {
 	label: string;

src/utils/edge_fields.ts

@@ -10,3 +10,13 @@ export const resolve_field_group_labels = (
 			.filter((group) => field_group_labels.includes(group.label))
 			.flatMap((group) => group.fields),
 	);
+
+export const omit_hidden_view_fields = (
+	edge_fields: BreadcrumbsSettings["edge_fields"],
+	labels: string[],
+) => {
+	const hidden = new Set(
+		edge_fields.filter((f) => f.hide_in_views).map((f) => f.label),
+	);
+	return labels.filter((l) => !hidden.has(l));
+};