Rename lifecycle hooks to match functions vocab

[wandamora]

Description

This renames afterInstall to afterFirstDeploy and afterUpdate to afterRedeploy to better mirror functions vocabulary and move away from Extensions terms.

Code sample

export const runInitialSetup = onTaskDispatched(async (request) => {
  await performDatabaseSeeding(request.data);
});

// The CLI automatically discovers this call and queues the task after first-time deploy
afterFirstDeploy({
  task: {
    function: "runInitialSetup",
    body: { data: "default_catalog" }
  }
});

[gemini-code-assist]

Code Review

This pull request renames the lifecycle hooks afterInstall and afterUpdate to afterFirstDeploy and afterRedeploy across the codebase and test suites to align with Cloud Functions terminology. The feedback suggests updating the JSDoc comments for both functions to use 'deployed' and 'redeployed' instead of 'installed' and 'updated' to maintain consistency with the new naming convention.