feat: add home timeline command

Add `bird home` command to fetch the authenticated user's home timeline.

- Supports "For You" feed (default) and "Following" feed (--latest)
- Uses HomeTimeline and HomeLatestTimeline GraphQL operations
- Includes count option (-n), JSON output, and pagination

Usage:
  bird home           # Get "For You" feed
  bird home --latest  # Get "Following" (chronological) feed
  bird home -n 50     # Fetch 50 tweets

src/commands/home.ts

@@ -0,0 +1,51 @@
+import type { Command } from 'commander';
+import type { CliContext } from '../cli/shared.js';
+import { TwitterClient } from '../lib/twitter-client.js';
+
+export function registerHomeCommand(program: Command, ctx: CliContext): void {
+  program
+    .command('home')
+    .description('Get your home timeline ("For You" feed)')
+    .option('-n, --count <number>', 'Number of tweets to fetch', '20')
+    .option('--latest', 'Get "Following" (chronological) instead of "For You"')
+    .option('--json', 'Output as JSON')
+    .option('--json-full', 'Output as JSON with full raw API response in _raw field')
+    .action(async (cmdOpts: { count?: string; latest?: boolean; json?: boolean; jsonFull?: boolean }) => {
+      const opts = program.opts();
+      const timeoutMs = ctx.resolveTimeoutFromOptions(opts);
+      const count = Number.parseInt(cmdOpts.count || '20', 10);
+
+      const { cookies, warnings } = await ctx.resolveCredentialsFromOptions(opts);
+
+      for (const warning of warnings) {
+        console.error(`${ctx.p('warn')}${warning}`);
+      }
+
+      if (!cookies.authToken || !cookies.ct0) {
+        console.error(`${ctx.p('err')}Missing required credentials`);
+        process.exit(1);
+      }
+
+      if (!Number.isFinite(count) || count <= 0) {
+        console.error(`${ctx.p('err')}Invalid --count. Expected a positive integer.`);
+        process.exit(1);
+      }
+
+      const client = new TwitterClient({ cookies, timeoutMs });
+      const includeRaw = cmdOpts.jsonFull ?? false;
+
+      const result = cmdOpts.latest
+        ? await client.getHomeLatestTimeline(count, { includeRaw })
+        : await client.getHomeTimeline(count, { includeRaw });
+
+      if (result.success && result.tweets) {
+        const feedType = cmdOpts.latest ? 'Following' : 'For You';
+        const emptyMessage = `No tweets found in ${feedType} timeline.`;
+        const isJson = cmdOpts.json || cmdOpts.jsonFull;
+        ctx.printTweets(result.tweets, { json: isJson, emptyMessage });
+      } else {
+        console.error(`${ctx.p('err')}Failed to fetch home timeline: ${result.error}`);
+        process.exit(1);
+      }
+    });
+}