muchas cosas

init-db/41-translation-metrics.sql

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+-- Translation throughput metrics (additive, no data loss)
+ALTER TABLE translation_stats ADD COLUMN IF NOT EXISTS items_translated INTEGER DEFAULT 0;
+ALTER TABLE translation_stats ADD COLUMN IF NOT EXISTS elapsed_ms INTEGER DEFAULT 0;
+ALTER TABLE translation_stats ADD COLUMN IF NOT EXISTS hostname VARCHAR(100);

init-db/42-user-search-tags.sql

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+-- Dynamic search tags per user (additive, no data loss)
+CREATE TABLE IF NOT EXISTS user_search_tags (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    term TEXT NOT NULL,
+    count INTEGER DEFAULT 1,
+    last_used TIMESTAMP DEFAULT NOW(),
+    UNIQUE (user_id, term)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_search_tags_user_count ON user_search_tags(user_id, count DESC, last_used DESC);