feat(core): integrate google calendar sync (#14248)

fix #14170 
fix #13893 
fix #13673 
fix #13543 
fix #13308 
fix #7607




#### PR Dependency Tree


* **PR #14247**
  * **PR #14248** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Integrations panel in Account Settings to link/unlink calendar
providers.
  * Collapsible settings wrapper for improved layout.

* **Improvements**
* Calendar system reworked: per-account calendar groups, simplified
toggles with explicit Save, richer event display (multi-dot date
indicators), improved event time/title handling across journal views.

* **Localization**
* Added calendar keys: save-error, no-journal, no-calendar; removed
legacy duplicate-error keys.

<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/i18n/build.ts

@@ -2,10 +2,13 @@ import { readdirSync, readFileSync, writeFileSync } from 'node:fs';
 import { parse } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
+import { ProjectRoot } from '@affine-tools/utils/path';
 import { Package } from '@affine-tools/utils/workspace';
 import { runCli } from '@magic-works/i18n-codegen';
+import { glob } from 'glob';
 
 const isDev = process.argv.includes('--dev');
+const shouldCleanup = process.argv.includes('--cleanup');
 
 const i18nPkg = new Package('@affine/i18n');
 const resourcesDir = i18nPkg.join('src', 'resources').toString();
@@ -21,6 +24,113 @@ function writeResource(lang: string, resource: Record<string, string>) {
   writeFileSync(filePath, JSON.stringify(resource, null, 2) + '\n');
 }
 
+async function cleanupResources() {
+  const escapeRegExp = (value: string) =>
+    value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+
+  const files = await glob('packages/frontend/**/src/**/*.{js,tsx,ts}', {
+    ignore: [
+      '**/node_modules/**',
+      '**/packages/frontend/i18n/src/resources/*',
+      '**/packages/frontend/i18n/src/i18n.gen.ts',
+      '**/dist/**',
+      '**/lib/**',
+    ],
+    cwd: ProjectRoot.toString(),
+    absolute: true,
+  });
+
+  const filesWithContent = files.map(file => {
+    return {
+      path: file,
+      content: readFileSync(file, 'utf8'),
+    };
+  });
+
+  const dynamicPrefixes = new Set<string>();
+  const templatePrefixRegex = /`[^`]*?(com\.affine\.[^`]*?)\$\{/g;
+  const concatPrefixRegex = /['"](com\.affine\.[^'"]*?\.)['"]\s*\+/g;
+  const addDynamicPrefix = (rawPrefix: string) => {
+    let prefix = rawPrefix;
+    if (!prefix.endsWith('.')) {
+      const lastDot = prefix.lastIndexOf('.');
+      if (lastDot === -1) {
+        return;
+      }
+      prefix = prefix.slice(0, lastDot + 1);
+    }
+    dynamicPrefixes.add(prefix);
+  };
+
+  for (const file of filesWithContent) {
+    templatePrefixRegex.lastIndex = 0;
+    concatPrefixRegex.lastIndex = 0;
+    let match: RegExpExecArray | null;
+    while ((match = templatePrefixRegex.exec(file.content)) !== null) {
+      addDynamicPrefix(match[1]);
+    }
+    while ((match = concatPrefixRegex.exec(file.content)) !== null) {
+      addDynamicPrefix(match[1]);
+    }
+  }
+
+  const resources = readdirSync(resourcesDir)
+    .filter(file => file.endsWith('.json'))
+    .reduce(
+      (langs, file) => {
+        const lang = parse(file).name;
+        langs[lang] = readResource(lang);
+        return langs;
+      },
+      {} as Record<string, Record<string, string>>
+    );
+
+  const candidateKeys = new Set<string>();
+
+  for (const resource of Object.values(resources)) {
+    Object.keys(resource).forEach(key => {
+      if (!key.startsWith('com.affine.payment.modal.')) {
+        candidateKeys.add(key);
+      }
+    });
+  }
+
+  const unusedKeys = Array.from(candidateKeys).filter(key => {
+    const regex1 = new RegExp(`[\`'"]${escapeRegExp(key)}[\`'"]`, 'g');
+    const lastDot = key.lastIndexOf('.');
+    const keyPrefix = lastDot === -1 ? '' : key.slice(0, lastDot + 1);
+    if (keyPrefix && dynamicPrefixes.has(keyPrefix)) {
+      return false;
+    }
+    for (const file of filesWithContent) {
+      const match = file.content.match(regex1);
+      if (match) {
+        return false;
+      }
+    }
+    return true;
+  });
+
+  if (unusedKeys.length === 0) {
+    return;
+  }
+
+  const unusedKeySet = new Set(unusedKeys);
+
+  for (const [lang, resource] of Object.entries(resources)) {
+    let changed = false;
+    for (const key of Object.keys(resource)) {
+      if (unusedKeySet.has(key)) {
+        delete resource[key];
+        changed = true;
+      }
+    }
+    if (changed) {
+      writeResource(lang, resource);
+    }
+  }
+}
+
 function calcCompletenesses() {
   const langs = readdirSync(resourcesDir)
     .filter(file => file.endsWith('.json'))
@@ -124,5 +234,8 @@ async function appendErrorI18n() {
 }
 
 await appendErrorI18n();
+if (shouldCleanup) {
+  await cleanupResources();
+}
 i18nnext();
 calcCompletenesses();