feat: implement YAML-based configuration, .env support, and customizable prompt templates for AI analysis

internal/db/db.go

@@ -62,8 +62,10 @@ func (db *DB) migrate() error {
 	CREATE TABLE IF NOT EXISTS job_analyses (
 		id INTEGER PRIMARY KEY AUTOINCREMENT,
 		raw_job_id INTEGER UNIQUE NOT NULL REFERENCES raw_jobs(id) ON DELETE CASCADE,
+		filter_score REAL DEFAULT 0.0,
 		score REAL DEFAULT 0.0,
 		is_qualified BOOLEAN NOT NULL DEFAULT 0,
+		summary TEXT,
 		matched_highlights JSON,
 		missing_highlights JSON,
 		tailoring_suggestions JSON,
@@ -125,5 +127,40 @@ func (db *DB) migrate() error {
 		}
 	}
 
+	// Dynamic migration for job_analyses: check if filter_score and summary exist
+	var hasFilterScore, hasSummary bool
+	rowsA, err := db.Query(`PRAGMA table_info(job_analyses)`)
+	if err == nil {
+		for rowsA.Next() {
+			var cid int
+			var name, ctype string
+			var notnull, pk int
+			var dfltValue sql.NullString
+			if err := rowsA.Scan(&cid, &name, &ctype, &notnull, &dfltValue, &pk); err == nil {
+				if name == "filter_score" {
+					hasFilterScore = true
+				}
+				if name == "summary" {
+					hasSummary = true
+				}
+			}
+		}
+		_ = rowsA.Close()
+	}
+
+	if !hasFilterScore {
+		if _, err := db.Exec(`ALTER TABLE job_analyses ADD COLUMN filter_score REAL DEFAULT 0.0`); err != nil {
+			logger.Log.Warnw("Failed to add filter_score column", "component", "DB", "error", err)
+		} else {
+			_, _ = db.Exec(`UPDATE job_analyses SET filter_score = score WHERE filter_score IS NULL OR filter_score = 0.0`)
+		}
+	}
+
+	if !hasSummary {
+		if _, err := db.Exec(`ALTER TABLE job_analyses ADD COLUMN summary TEXT`); err != nil {
+			logger.Log.Warnw("Failed to add summary column", "component", "DB", "error", err)
+		}
+	}
+
 	return nil
 }