Adds the Agentforce Grid (AI Workbench) skill for spreadsheet-like AI
operations in Salesforce — agent testing with utterances, batch prompt
processing, AI-driven data enrichment, and evaluation columns.
Covers the /services/data/v66.0/public/grid/ Connect API and 12 column
types (AI, Agent, AgentTest, Evaluation, Formula, Object,
DataModelObject, PromptTemplate, InvocableAction, Action, Reference,
Text).
Skill previously lived at git.soma.salesforce.com/tmcgrath/agentforce-grid-ai-skills
and github.com/Agentforce-emu/agentforce-grid-skills.
