fix: wire max_turns input through to SDK in run.ts

The main entrypoint (run.ts) never passes maxTurns to runClaude(), so
the SDK omits --max-turns from the CLI args and the CLI defaults to 10
turns.  The base-action entrypoint wires this correctly — run.ts was
just missing it.

- Add max_turns input to action.yml
- Pass INPUT_MAX_TURNS through the composite step env block
- Add maxTurns to the runClaude() call in run.ts

Fixes #1177

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: qozle

action.yml

@@ -86,6 +86,10 @@ inputs:
     required: false
     default: "false"
 
+  max_turns:
+    description: "Maximum number of agentic turns for Claude to use"
+    required: false
+    default: ""
   claude_args:
     description: "Additional arguments to pass directly to Claude CLI"
     required: false
@@ -268,6 +272,7 @@ runs:
         INPUT_EXPERIMENTAL_SLASH_COMMANDS_DIR: ${{ github.action_path }}/slash-commands
         INPUT_PATH_TO_CLAUDE_CODE_EXECUTABLE: ${{ inputs.path_to_claude_code_executable }}
         INPUT_PATH_TO_BUN_EXECUTABLE: ${{ inputs.path_to_bun_executable }}
+        INPUT_MAX_TURNS: ${{ inputs.max_turns }}
         INPUT_SHOW_FULL_OUTPUT: ${{ inputs.show_full_output }}
         DISPLAY_REPORT: ${{ inputs.display_report }}
         INPUT_PLUGINS: ${{ inputs.plugins }}

src/entrypoints/run.ts

@@ -268,6 +268,7 @@ async function run() {
     const claudeResult: ClaudeRunResult = await runClaude(promptConfig.path, {
       claudeArgs: prepareResult.claudeArgs,
       appendSystemPrompt: process.env.APPEND_SYSTEM_PROMPT,
+      maxTurns: process.env.INPUT_MAX_TURNS,
       model: process.env.ANTHROPIC_MODEL,
       pathToClaudeCodeExecutable:
         process.env.INPUT_PATH_TO_CLAUDE_CODE_EXECUTABLE,