feat(analytics): connect Umami analytics across www, docs, and static services (#49)

## Summary of Changes

- **`@ermnvldmr/ssg`**: Added extensible `AnalyticsProvider` interface,
`umamiAnalytics` integration in `@ermnvldmr/ssg/dev`, and runtime client
analytics dispatchers (`trackEvent`, `identifySession`).
- **`services/docs`**: Configured native Hextra Umami parameters in
`hugo.yaml` (`docs.ermnvldmr.com` with UUID
`fbdadf3f-3484-4186-a2c2-cedcf76cf44f`).
- **`services/www`**: Injected Umami tracking provider into
`rsbuild.config.ts` (`ermnvldmr.com`, `www.ermnvldmr.com` with UUID
`4fca5ac2-4fe4-4626-b708-933c37bfe918`).
- **`services/static`**: Injected Umami tracking provider into
`rsbuild.config.ts` (`static.ermnvldmr.com` with UUID
`0831532a-2cec-4955-8f5b-452d8bba96d8`).
- **Environment & Privacy**: Injections are automatically disabled in
development builds. Configured `data-domains` filtering and
`data-do-not-track="true"`.

## Verification
- `pnpm typecheck`: Passed (0 errors)
- `pnpm lint`: Passed (0 warnings)
- `pnpm test`: Passed (all unit test suites)
- `pnpm build`: Passed clean workspace build and pre-rendered SSG
injection

---
Disclosure: I'm an AI assistant helping Vladimir Eremin; I'm not
Vladimir Eremin.

services/static/rsbuild.config.ts

@@ -1,7 +1,17 @@
-import { defineSSGServiceConfig, discoverEntries } from '@ermnvldmr/ssg/dev';
+import { defineSSGServiceConfig, discoverEntries, umamiAnalytics } from '@ermnvldmr/ssg/dev';
 import { THEME_INIT_SCRIPT, THEME_INIT_STYLES } from '@ermnvldmr/ui/dev';
 
+const UMAMI_STATIC_WEBSITE_ID = '0831532a-2cec-4955-8f5b-452d8bba96d8';
+
 export default defineSSGServiceConfig({
+  analytics: [
+    umamiAnalytics({
+      serverUrl: 'https://umami.ermnvldmr.com',
+      websiteId: UMAMI_STATIC_WEBSITE_ID,
+      domains: 'static.ermnvldmr.com',
+      doNotTrack: true,
+    }),
+  ],
   source: {
     entry: discoverEntries(import.meta.dirname, './src/app/**/*.tsx'),
     preEntry: ['./src/static/global.css'],

services/static/src/components/layouts/IndexLayout/IndexLayout.tsx

@@ -1,5 +1,6 @@
 import { PageRoot, ThemeSwitch } from '@ermnvldmr/kits';
-import { Container, HStack, Icon, Separator, Text, VStack } from '@ermnvldmr/ui';
+import { trackEvent } from '@ermnvldmr/ssg';
+import { Container, HStack, Icon, LogProvider, Separator, Text, VStack } from '@ermnvldmr/ui';
 import { Monitor, Moon, Sun } from 'lucide-react';
 import React from 'react';
 
@@ -25,25 +26,27 @@ export function IndexLayout({ children }: IndexLayoutProps): React.JSX.Element {
   const currentYear = new Date().getFullYear();
 
   return (
-    <PageRoot className="flex flex-col justify-between">
-      <main className="flex-1 w-full">{children}</main>
-      <VStack as="footer" className="w-full" gap={0}>
-        <Separator thinned="none" />
-        <Container className="w-full" padding={12}>
-          <HStack align="center" className="w-full" justify="between">
-            <VStack align="start" gap={1}>
-              <Text color="muted" size="s">
-                © {currentYear} Vladimir Eremin
-              </Text>
-            </VStack>
-            <ThemeSwitch
-              darkIcon={<Icon icon={Moon} />}
-              lightIcon={<Icon icon={Sun} />}
-              systemIcon={<Icon icon={Monitor} />}
-            />
-          </HStack>
-        </Container>
-      </VStack>
-    </PageRoot>
+    <LogProvider logger={trackEvent}>
+      <PageRoot className="flex flex-col justify-between">
+        <main className="flex-1 w-full">{children}</main>
+        <VStack as="footer" className="w-full" gap={0}>
+          <Separator thinned="none" />
+          <Container className="w-full" padding={12}>
+            <HStack align="center" className="w-full" justify="between">
+              <VStack align="start" gap={1}>
+                <Text color="muted" size="s">
+                  © {currentYear} Vladimir Eremin
+                </Text>
+              </VStack>
+              <ThemeSwitch
+                darkIcon={<Icon icon={Moon} />}
+                lightIcon={<Icon icon={Sun} />}
+                systemIcon={<Icon icon={Monitor} />}
+              />
+            </HStack>
+          </Container>
+        </VStack>
+      </PageRoot>
+    </LogProvider>
   );
 }