fix(cli): Wait for program confirmation before IDL init during deploy

[GuiBibeau]

Fixes race condition in anchor deploy where IDL operations fail during deployment and redeployment.

Issues Fixed

1. Initial deployment: Program not yet available in validator cache when IDL init is attempted
2. Redeployment: IDL account already exists, causing "account already in use" error

Changes

• Add polling loop to wait for program confirmation before IDL operations
• Check if IDL account exists and call idl_upgrade (if exists) or idl_init (if new)
• Reduce retry count from 30 to 5 for faster feedback

Testing Steps

1. Build the CLI from this branch:

   git fetch origin pull/3976/head:fix/deploy-race-condition
   git checkout fix/deploy-race-condition
   cargo build --release

2. Start a fresh localnet validator:

   solana-test-validator --reset

3. Create and deploy a new project using the built CLI:

   cd /tmp
   ./path/to/anchor/target/release/anchor init test-project
   cd test-project
   ./path/to/anchor/target/release/anchor build
   ./path/to/anchor/target/release/anchor deploy

   Expected: "Idl account created"

4. Make a code change and redeploy:

   # Add a new instruction to programs/test-project/src/lib.rs
   ./path/to/anchor/target/release/anchor build
   ./path/to/anchor/target/release/anchor deploy

   Expected: "Idl account successfully upgraded"

Before

• Initial deploy: Failed with "Program is not deployed"
• Redeploy: Failed with "account already in use"

After

• Initial deploy: Waits for program confirmation, then creates IDL
• Redeploy: Detects existing IDL account and upgrades it

[vercel]

@GuiBibeau is attempting to deploy a commit to the Solana Foundation Team on Vercel.

A member of the Team first needs to authorize it.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

1 Skipped Deployment

Project	Deployment	Preview	Comments	Updated (UTC)
anchor-docs	Ignored	Preview		Oct 9, 2025 9:29pm

[tobySolutions]

Cooked!