feat: v3.0.0 - intelligent search, GitHub person/project mode, ELI5, 13+ sources

v3 rewrites the search engine from the ground up:

- Intelligent pre-research: resolves X handles, GitHub repos, subreddits,
  TikTok hashtags, and YouTube channels before searching
- GitHub person-mode: PR velocity, top repos by stars, release notes
- GitHub project-mode: live star counts, README, releases, top issues
- ELI5 mode: plain language synthesis, no jargon
- 13+ sources: Reddit, X, YouTube, TikTok, Instagram, HN, Polymarket,
  GitHub, Threads, Pinterest, Perplexity, Bluesky, Web
- Free Reddit comments via public JSON (no API key needed)
- Fun judge v2: humor scoring baked into narrative
- Cookie consent before browser scanning
- 10,000 free ScrapeCreators calls
- 1,012 tests

Thank you to the community contributors whose issues and PRs shaped v3:
@uppinote20 (#143), @zerone0x (#134, #136), @thinkun (#116),
@thomasmktong (#124), @fanispoulinakisai-boop (#100), @pejmanjohn (#78),
@zl190 (#115), @hnshah (#84, #85, #86)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/test_instagram.py

@@ -0,0 +1,68 @@
+import sys
+import unittest
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "scripts"))
+
+from lib.instagram import _parse_items
+
+
+class TestInstagramOwnerTypeSafety(unittest.TestCase):
+    def _make_raw(self, **overrides):
+        base = {
+            "id": "1",
+            "code": "ABC123",
+            "caption": "test caption",
+            "owner": {"username": "testuser"},
+        }
+        base.update(overrides)
+        return base
+
+    def test_owner_as_dict(self):
+        items = _parse_items([self._make_raw()], "test")
+        self.assertEqual("testuser", items[0]["author_name"])
+
+    def test_owner_as_string(self):
+        items = _parse_items([self._make_raw(owner="stringuser")], "test")
+        self.assertEqual("stringuser", items[0]["author_name"])
+
+    def test_owner_missing(self):
+        raw = self._make_raw()
+        del raw["owner"]
+        items = _parse_items([raw], "test")
+        self.assertEqual("", items[0]["author_name"])
+
+    def test_owner_none(self):
+        items = _parse_items([self._make_raw(owner=None)], "test")
+        self.assertEqual("", items[0]["author_name"])
+
+    def test_user_field_fallback(self):
+        raw = self._make_raw()
+        del raw["owner"]
+        raw["user"] = {"username": "fallbackuser"}
+        items = _parse_items([raw], "test")
+        self.assertEqual("fallbackuser", items[0]["author_name"])
+
+
+class TestExpandInstagramQueries(unittest.TestCase):
+    """Tests for expand_instagram_queries() multi-query generation."""
+
+    def test_default_depth_returns_two_plus_queries(self):
+        from lib.instagram import expand_instagram_queries
+        queries = expand_instagram_queries("Kanye West", "default")
+        self.assertGreaterEqual(len(queries), 2)
+        # Breaking_news intent should include reaction/edit variant
+        variant_found = any(
+            "reaction" in q.lower() or "edit" in q.lower()
+            for q in queries
+        )
+        self.assertTrue(variant_found, f"Expected reaction/edit variant: {queries}")
+
+    def test_quick_depth_returns_one_query(self):
+        from lib.instagram import expand_instagram_queries
+        queries = expand_instagram_queries("Kanye West", "quick")
+        self.assertEqual(len(queries), 1)
+
+
+if __name__ == "__main__":
+    unittest.main()