Use STRICT tables to enforce correct column value types

See https://www.sqlite.org/stricttables.html

app/database/db_sqlite_setup.sql

@@ -8,15 +8,15 @@ CREATE TABLE IF NOT EXISTS crawl_queue(
     depth INTEGER,
     addedAt DATETIME DEFAULT CURRENT_TIMESTAMP,
     updatedAt DATETIME DEFAULT CURRENT_TIMESTAMP
-);
+) STRICT;
 
 -- When a canonical URL is discovered, it is cached in this table to prevent excessively querying the target
 CREATE TABLE IF NOT EXISTS canonicals(
     source TEXT NOT NULL,
     url TEXT NOT NULL,
     canonical TEXT NOT NULL,
     crawledAt DATETIME DEFAULT CURRENT_TIMESTAMP
-);
+) STRICT;
 
 -- After a page is crawled, it is added to this table
 CREATE TABLE IF NOT EXISTS pages(    
@@ -30,7 +30,7 @@ CREATE TABLE IF NOT EXISTS pages(
     title TEXT,
     description TEXT,
     content TEXT
-);
+) STRICT;
 
 -- Ensure a page can only be queued and/or indexed once per source and that pages can only have one canonical per source
 CREATE UNIQUE INDEX IF NOT EXISTS queue_source_url ON crawl_queue(source, url);