feat(cli): add max-turns flag to run command

[galatolofederico]

What does this PR do?

Closes #9869
Adds a --max-turns argument to the run command. Does not count subagents turns.

How did you verify your code works?

Test without --max-turns argument

➜  bun dev -- run  "Find the secret cheat code hidden in this repo. Read one file at a time"
$ bun run --cwd packages/opencode --conditions=browser src/index.ts run "Find the secret cheat code hidden in this repo. Read one file at a time"

> build · k2p5

I'll help you find the secret cheat code. Let me start by exploring the repository structure.

→ Read .
✱ Grep "cheat|secret|hidden|code" in . · 2027 matches
→ Read README.md

$ find /var/home/federico/Misc/opencode-maxturns/packages/opencode -type f -name "*.ts" -o -name "*.js" -o -name "*.json" -o -name "*.md" | head -50
(omissis)

→ Read AGENTS.md
✱ Grep "cheat" in . · 0 matches
✱ Grep "konami|upupdowndown|easter.egg|hidden.*code" in . · 0 matches

$ grep -r -i "secret\|password\|key\|hidden\|code" /var/home/federico/Misc/opencode-maxturns/packages/opencode/src --include="*.ts" --include="*.js" | grep -v "node_modules" | head -20
(omissis)

$ find /var/home/federico/Misc/opencode-maxturns/packages/opencode -name "*secret*" -o -name "*cheat*" -o -name "*hidden*" -o -name "*easter*" 2>/dev/null
→ Read test/tool/read.test.ts
[ ... and so on agent never stops ]

Test with --max-turns 1 argument

➜  bun dev -- run --max-turns 1  "Find the secret cheat code hidden in this repo. Read one file at a time"
$ bun run --cwd packages/opencode --conditions=browser src/index.ts run --max-turns "1" "Find the secret cheat code hidden in this repo. Read one file at a time"

> build · k2p5

I'll help you find the secret cheat code! Let me start by exploring the repository structure.

→ Read .
!  maximum turns of 1 reached, stopping session
error: script "dev" exited with code 1

Test with --max-turns 3 argument

➜  bun dev -- run --max-turns 3  "Find the secret cheat code hidden in this repo. Read one file at a time"
$ bun run --cwd packages/opencode --conditions=browser src/index.ts run --max-turns "3" "Find the secret cheat code hidden in this repo. Read one file at a time"

> build · k2p5

I'll help you find the secret cheat code. Let me start by exploring the repository structure.

→ Read .
→ Read README.md
→ Read package.json
!  maximum turns of 3 reached, stopping session
error: script "dev" exited with code 1

[github-actions]

Closing this pull request because it has had no updates for more than 60 days. If you plan to continue working on it, feel free to reopen or open a new PR.