Add PDF and Notes tools to Telegram bot

- Omni/Agent/Tools/Pdf.hs: Extract text from PDFs using pdftotext
- Omni/Agent/Tools/Notes.hs: Quick notes CRUD with topics
- Add notes table schema to Memory.hs initMemoryDb
- Wire both tools into Telegram bot with logging callbacks

1 files changed, 15 insertions, 0 deletions

diff --git a/Omni/Agent/Memory.hs b/Omni/Agent/Memory.hs
index 461f7ac..8337baf 100644
--- a/Omni/Agent/Memory.hs
+++ b/Omni/Agent/Memory.hs
@@ -513,6 +513,21 @@ initMemoryDb conn = do
   SQL.execute_
     conn
     "CREATE INDEX IF NOT EXISTS idx_summary_user_chat ON conversation_summaries(user_id, chat_id)"
+  SQL.execute_
+    conn
+    "CREATE TABLE IF NOT EXISTS notes (\
+    \  id INTEGER PRIMARY KEY AUTOINCREMENT,\
+    \  user_id TEXT NOT NULL,\
+    \  topic TEXT NOT NULL,\
+    \  content TEXT NOT NULL,\
+    \  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\
+    \)"
+  SQL.execute_
+    conn
+    "CREATE INDEX IF NOT EXISTS idx_notes_user ON notes(user_id)"
+  SQL.execute_
+    conn
+    "CREATE INDEX IF NOT EXISTS idx_notes_topic ON notes(user_id, topic)"
 
 -- | Create a new user.
 createUser :: Text -> Maybe Int -> IO User