refactor(recent-changes): use descriptive field names in RcItemJson

Replace single-letter keys (t, l, d, c, k, e, g) with readable names:
  t → title
  l → link
  d → date
  c → created
  k → type
  e → excerpt
  g → tags

Also remove the unused 'i' (index) field — it was included in the JSON
payload but never accessed by the client script.

quartz/components/RecentChanges.tsx

@@ -126,17 +126,15 @@ export default ((userOpts?: Partial<Options>) => {
 
     // JSON data island: all items as compact JSON for progressive client-side injection.
     // Links are pre-resolved server-side since the client cannot call resolveRelative.
-    // The `i` field records each item's index in this array for deduplication tracking.
     const allItemsJson = JSON.stringify(
-      filtered.map((item, idx) => ({
-        i: idx,
-        t: item.title,
-        l: resolveRelative(fileData.slug!, item.link),
-        d: item.date.getTime(),
-        c: item.createdDate.getTime(),
-        k: item.type,
-        ...(opts.showExcerpt && item.excerpt ? { e: item.excerpt } : {}),
-        ...(opts.showTags && item.tags?.length ? { g: item.tags } : {}),
+      filtered.map((item) => ({
+        title: item.title,
+        link: resolveRelative(fileData.slug!, item.link),
+        date: item.date.getTime(),
+        created: item.createdDate.getTime(),
+        type: item.type,
+        ...(opts.showExcerpt && item.excerpt ? { excerpt: item.excerpt } : {}),
+        ...(opts.showTags && item.tags?.length ? { tags: item.tags } : {}),
       })),
     ).replace(/<\//g, "<\\/")
 

quartz/components/scripts/recentChanges.inline.ts

@@ -19,14 +19,13 @@ function formatRelativeDate(date: Date, locale: string): string {
 }
 
 interface RcItemJson {
-  i: number
-  t: string
-  l: string
-  d: number // most-recent-activity timestamp
-  c: number // creation date timestamp
-  k: "created" | "modified"
-  e?: string
-  g?: string[]
+  title: string
+  link: string
+  date: number // most-recent-activity timestamp (ms)
+  created: number // creation date timestamp (ms)
+  type: "created" | "modified"
+  excerpt?: string
+  tags?: string[]
 }
 
 interface RcI18n {
@@ -83,9 +82,9 @@ function setupRecentChanges() {
     //   "created"  → ALL notes by creation date (the "New" tab)
     //   "modified" → only modified notes by modification date
     const sortedArrays: Record<string, RcItemJson[]> = {
-      all: [...allData].sort((a, b) => b.d - a.d),
-      created: [...allData].sort((a, b) => b.c - a.c),
-      modified: allData.filter((x) => x.k === "modified").sort((a, b) => b.d - a.d),
+      all: [...allData].sort((a, b) => b.date - a.date),
+      created: [...allData].sort((a, b) => b.created - a.created),
+      modified: allData.filter((x) => x.type === "modified").sort((a, b) => b.date - a.date),
     }
 
     // Human-readable descriptions for each tab
@@ -102,15 +101,15 @@ function setupRecentChanges() {
 
     function createItemEl(item: RcItemJson, filter: string): HTMLLIElement {
       const li = document.createElement("li")
-      li.className = `recent-change-item ${item.k}`
-      li.dataset.type = item.k
+      li.className = `recent-change-item ${item.type}`
+      li.dataset.type = item.type
 
       const a = document.createElement("a")
-      a.href = item.l
+      a.href = item.link
       a.className = "recent-change-link internal"
       const titleSpan = document.createElement("span")
       titleSpan.className = "recent-change-title"
-      titleSpan.textContent = item.t
+      titleSpan.textContent = item.title
       a.appendChild(titleSpan)
       li.appendChild(a)
 
@@ -120,11 +119,11 @@ function setupRecentChanges() {
       const typeSpan = document.createElement("span")
       typeSpan.className = "recent-change-type"
       typeSpan.textContent =
-        item.k === "created" ? (i18nData.badgeNew ?? "New") : (i18nData.badgeUpdated ?? "Edited")
+        item.type === "created" ? (i18nData.badgeNew ?? "New") : (i18nData.badgeUpdated ?? "Edited")
       meta.appendChild(typeSpan)
 
       // Use creation timestamp for the "New" tab, activity timestamp otherwise
-      const ts = filter === "created" ? item.c : item.d
+      const ts = filter === "created" ? item.created : item.date
       const dateSpan = document.createElement("span")
       dateSpan.className = "recent-change-date"
       dateSpan.dataset.timestamp = ts.toString()
@@ -133,17 +132,17 @@ function setupRecentChanges() {
 
       li.appendChild(meta)
 
-      if (isDetailed && showExcerpt && item.e) {
+      if (isDetailed && showExcerpt && item.excerpt) {
         const p = document.createElement("p")
         p.className = "recent-change-excerpt"
-        p.textContent = item.e
+        p.textContent = item.excerpt
         li.appendChild(p)
       }
 
-      if (isDetailed && showTags && item.g?.length) {
+      if (isDetailed && showTags && item.tags?.length) {
         const tagsDiv = document.createElement("div")
         tagsDiv.className = "recent-change-tags"
-        item.g.forEach((tag) => {
+        item.tags.forEach((tag) => {
           const tagSpan = document.createElement("span")
           tagSpan.className = "recent-change-tag"
           tagSpan.textContent = tag