refactor(notes): rename title font to heading font

These fonts apply to markdown headings (h1-h6), so "heading" is more
accurate than "title". Renames the chosen*Font field, store action, and
the --heading-font-family CSS variable.

Keeps backward compatibility: .remanso.json still honors the legacy `t`
key (alongside the new `h`), and a saved `chosenTitleFont` in
localStorage is migrated on load so existing preferences survive.

src/components/FontChange.vue

@@ -25,16 +25,16 @@ const fontFamilies = computed(
 const sortedFontFamilies = computed(() => {
   const base = fontFamilies.value
   const extras = [
-    store.userSettings?.chosenTitleFont,
+    store.userSettings?.chosenHeadingFont,
     store.userSettings?.chosenBodyFont
   ].filter((f): f is string => !!f && !base.includes(f))
   return [...base, ...extras].sort((a, b) => a.localeCompare(b))
 })
 const fontSizes = Array.from({ length: 7 }, (_, i) => `${9 + i * 2}pt`)
 
-const titleFont = computed({
-  get: () => store.userSettings?.chosenTitleFont,
-  set: (value) => store.setTitleFont(value!)
+const headingFont = computed({
+  get: () => store.userSettings?.chosenHeadingFont,
+  set: (value) => store.setHeadingFont(value!)
 })
 const bodyFont = computed({
   get: () => store.userSettings?.chosenBodyFont,
@@ -49,8 +49,8 @@ const fontSize = computed({
 <template>
   <div class="font-change">
     <div>
-      <label for="title-font" class="font-label">t</label>
-      <select id="title-font" class="select" v-model="titleFont">
+      <label for="heading-font" class="font-label">h</label>
+      <select id="heading-font" class="select" v-model="headingFont">
         <option v-for="font in sortedFontFamilies" :key="font" :value="font">
           {{ font }}
         </option>

src/modules/repo/interfaces/UserSettings.ts

@@ -8,7 +8,7 @@ export interface UserSettings extends Model<DataType.UserSettings> {
   fontSize?: string
   chosenFontSize?: string
   backlink?: boolean
-  chosenTitleFont?: string
+  chosenHeadingFont?: string
   chosenBodyFont?: string
   pageWidth?: string
 }

src/modules/repo/services/repo.spec.ts

@@ -25,6 +25,7 @@ import { getOctokit, runWithAuthRetry } from "./octo"
 import {
   getFiles,
   getRepoPermission,
+  getUserSettingsContent,
   queryFileContent
 } from "./repo"
 
@@ -165,3 +166,58 @@ describe("queryFileContent", () => {
     expect(warn).toHaveBeenCalled()
   })
 })
+
+describe("getUserSettingsContent", () => {
+  beforeEach(() => {
+    vi.mocked(runWithAuthRetry).mockReset()
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  const configFiles = [
+    { path: ".remanso.json", type: "blob", sha: "CFG" }
+  ] as never
+
+  const withConfig = (json: object) => {
+    const base64 = btoa(JSON.stringify(json))
+    vi.mocked(runWithAuthRetry).mockImplementation(async (call) => {
+      const octokit = {
+        request: vi.fn().mockResolvedValue({ data: { content: base64 } })
+      }
+      return call(octokit as never)
+    })
+  }
+
+  it("maps the `h` key to chosenHeadingFont and `p` to chosenBodyFont", async () => {
+    withConfig({ h: "Lora", p: "Inter" })
+
+    const settings = await getUserSettingsContent("owner", "repo", configFiles)
+
+    expect(settings?.chosenHeadingFont).toBe("Lora")
+    expect(settings?.chosenBodyFont).toBe("Inter")
+  })
+
+  it("falls back to the legacy `t` key for chosenHeadingFont", async () => {
+    withConfig({ t: "Merriweather", p: "Inter" })
+
+    const settings = await getUserSettingsContent("owner", "repo", configFiles)
+
+    expect(settings?.chosenHeadingFont).toBe("Merriweather")
+  })
+
+  it("prefers `h` over the legacy `t` when both are present", async () => {
+    withConfig({ h: "Lora", t: "Merriweather" })
+
+    const settings = await getUserSettingsContent("owner", "repo", configFiles)
+
+    expect(settings?.chosenHeadingFont).toBe("Lora")
+  })
+
+  it("returns null when there is no .remanso.json", async () => {
+    expect(
+      await getUserSettingsContent("owner", "repo", [] as never)
+    ).toBeNull()
+  })
+})

src/modules/repo/services/repo.ts

@@ -123,12 +123,14 @@ export const getUserSettingsContent = async (
 
   const raw = JSON.parse(atob(content)) as UserSettings & {
     t?: string
+    h?: string
     p?: string
   }
-  const { t, p, ...rest } = raw
+  const { t, h, p, ...rest } = raw
   return {
     ...rest,
-    chosenTitleFont: t,
+    // `h` (heading) is the current key; `t` (title) is kept for back-compat.
+    chosenHeadingFont: h ?? t,
     chosenBodyFont: p
   }
 }

src/modules/repo/store/userRepo.store.spec.ts

@@ -131,20 +131,20 @@ describe("userRepo store — synchronous mutations", () => {
     expect(persisted.chosenFontFamily).toBe("Inter")
   })
 
-  it("setFontSize, setTitleFont, setBodyFont each persist their respective field", () => {
+  it("setFontSize, setHeadingFont, setBodyFont each persist their respective field", () => {
     const store = useUserRepoStore()
     store.user = "alice"
     store.repo = "notes"
 
     store.setFontSize("18px")
-    store.setTitleFont("Serif")
+    store.setHeadingFont("Serif")
     store.setBodyFont("Sans")
 
     const persisted = JSON.parse(
       localStorage.getItem("remanso:layout:alice:notes") as string
     )
     expect(persisted.chosenFontSize).toBe("18px")
-    expect(persisted.chosenTitleFont).toBe("Serif")
+    expect(persisted.chosenHeadingFont).toBe("Serif")
     expect(persisted.chosenBodyFont).toBe("Sans")
   })
 })
@@ -173,6 +173,25 @@ describe("userRepo store — setUserRepo", () => {
     expect(store.loadError).toBeNull()
   })
 
+  it("migrates the legacy chosenTitleFont localStorage key to chosenHeadingFont", async () => {
+    localStorage.setItem(
+      "remanso:layout:alice:notes",
+      JSON.stringify({ chosenTitleFont: "Lora" })
+    )
+
+    const store = useUserRepoStore()
+    await store.setUserRepo("alice", "notes")
+    await flushAsync()
+    await flushAsync()
+
+    expect(store.userSettings?.chosenHeadingFont).toBe("Lora")
+    const persisted = JSON.parse(
+      localStorage.getItem("remanso:layout:alice:notes") as string
+    )
+    expect(persisted.chosenHeadingFont).toBe("Lora")
+    expect(persisted.chosenTitleFont).toBeUndefined()
+  })
+
   it("populates files from getFiles on success", async () => {
     vi.mocked(getFiles).mockResolvedValue([
       { sha: "a", path: "x.md", type: "blob" } as never

src/modules/repo/store/userRepo.store.ts

@@ -56,7 +56,7 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
       if (!this.userSettings) return
       try {
         const {
-          chosenTitleFont,
+          chosenHeadingFont,
           chosenBodyFont,
           chosenFontSize,
           chosenFontFamily,
@@ -65,7 +65,7 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
         localStorage.setItem(
           `remanso:layout:${this.user}:${this.repo}`,
           JSON.stringify({
-            chosenTitleFont,
+            chosenHeadingFont,
             chosenBodyFont,
             chosenFontSize,
             chosenFontFamily,
@@ -86,7 +86,17 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
       let lsLayout: Partial<UserSettings> = {}
       try {
         const lsRaw = localStorage.getItem(`remanso:layout:${user}:${repo}`)
-        if (lsRaw) lsLayout = JSON.parse(lsRaw)
+        if (lsRaw) {
+          const parsed = JSON.parse(lsRaw) as Partial<UserSettings> & {
+            chosenTitleFont?: string
+          }
+          // Migrate the pre-rename key so a saved heading font survives.
+          if (parsed.chosenTitleFont && !parsed.chosenHeadingFont) {
+            parsed.chosenHeadingFont = parsed.chosenTitleFont
+          }
+          delete parsed.chosenTitleFont
+          lsLayout = parsed
+        }
       } catch {
         // ignore
       }
@@ -157,9 +167,9 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
             : userSettings?.fontFamily
           const chosenFontSize =
             this.userSettings?.chosenFontSize ?? userSettings?.fontSize
-          const chosenTitleFont =
-            this.userSettings?.chosenTitleFont ??
-            userSettings?.chosenTitleFont ??
+          const chosenHeadingFont =
+            this.userSettings?.chosenHeadingFont ??
+            userSettings?.chosenHeadingFont ??
             chosenFontFamily
           const chosenBodyFont =
             this.userSettings?.chosenBodyFont ??
@@ -175,14 +185,14 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
             chosenFontFamily ?? this.userSettings.fontFamily
           this.userSettings.chosenFontSize =
             chosenFontSize ?? this.userSettings.fontSize
-          this.userSettings.chosenTitleFont = chosenTitleFont
+          this.userSettings.chosenHeadingFont = chosenHeadingFont
           this.userSettings.chosenBodyFont = chosenBodyFont
 
           this._persistLayout()
 
           // Persist only repo config fields — chosen* are localStorage-only
           const {
-            chosenTitleFont: _t,
+            chosenHeadingFont: _h,
             chosenBodyFont: _b,
             chosenFontSize: _s,
             chosenFontFamily: _f,
@@ -294,11 +304,11 @@ export const useUserRepoStore = defineStore("USER_REPO_STATE", {
       this.userSettings.chosenFontSize = fontSize
       this._persistLayout()
     },
-    setTitleFont(font: string) {
+    setHeadingFont(font: string) {
       if (!this.userSettings) {
         this.userSettings = { $type: DataType.UserSettings }
       }
-      this.userSettings.chosenTitleFont = font
+      this.userSettings.chosenHeadingFont = font
       this._persistLayout()
     },
     setBodyFont(font: string) {

src/modules/user/hooks/useUserSettings.hook.ts

@@ -16,12 +16,12 @@ export const useUserSettings = () => {
 
     const fontSize = store.userSettings?.chosenFontSize
     const bodyFont = store.userSettings?.chosenBodyFont
-    const titleFont = store.userSettings?.chosenTitleFont
+    const headingFont = store.userSettings?.chosenHeadingFont
 
     downloadFont(bodyFont || DEFAULT_FONT_POLICY, "--font-family")
     downloadFont(
-      titleFont || bodyFont || DEFAULT_FONT_POLICY,
-      "--title-font-family"
+      headingFont || bodyFont || DEFAULT_FONT_POLICY,
+      "--heading-font-family"
     )
     root.style.setProperty("--font-size", fontSize || DEFAULT_FONT_SIZE)
 

src/styles/app.css

@@ -6,7 +6,7 @@
 :root {
   --primary-color: #ffa4c0;
   --font-family: "Libertinus Serif", serif;
-  --title-font-family: "Libertinus Serif", serif;
+  --heading-font-family: "Libertinus Serif", serif;
   --font-size: 13pt;
   --font-color: #4a4a4a;
   --link: #445fb9;

tailwind.config.js

@@ -3,7 +3,7 @@ const dotenv = require("dotenv")
 
 dotenv.config()
 
-const defaultTitleStyles = Array.from(
+const defaultHeadingStyles = Array.from(
   { length: 6 },
   (_, k) => `h${k + 1}`
 ).reduce(
@@ -12,7 +12,7 @@ const defaultTitleStyles = Array.from(
     [heading]: {
       "margin-top": "0",
       "margin-bottom": "0.5em",
-      "font-family": "var(--title-font-family)"
+      "font-family": "var(--heading-font-family)"
     }
   }),
   {}
@@ -27,7 +27,7 @@ module.exports = {
       typography: () => ({
         DEFAULT: {
           css: {
-            ...defaultTitleStyles,
+            ...defaultHeadingStyles,
             "font-size": "13pt",
             "font-family": '"Libertinus Serif", serif',
             p: {