STOCKTON — Residents in a high-crime portion of south Stockton report less than 30 percent of the gunfire that occurs in their neighborhood to the police.That statistic is among the nuggets in a staff report included in an agenda item for tonight’s City Council meeting. The item recommends approval of a contract with the providers of ShotSpotter, a high-tech gunfire-detection system.The expected approval of the contract, at a cost of $100,000, would continue [...]