fix(claude-code): update inner system prompt to include summary rules (#461)

## Description

Update `report_tasks_system_prompt` to include `coder_report_task`
summary rules.

## Type of Change

- [ ] New module
- [x] Bug fix
- [ ] Feature/enhancement
- [ ] Documentation
- [ ] Other

## Module Information

**Path:** `registry/coder/modules/claude-code`  
**New version:** `v3.0.3`  
**Breaking change:** [ ] Yes [x] No

## Testing & Validation

- [x] Tests pass (`bun test`)
- [x] Code formatted (`bun run fmt`)
- [x] Changes tested locally

## Related Issues

Follow-up from: https://github.com/coder/registry/pull/443
Related to: https://github.com/coder/coder/pull/20191/files#r2410441026

registry/coder/modules/claude-code/README.md

@@ -13,7 +13,7 @@ Run the [Claude Code](https://docs.anthropic.com/en/docs/agents-and-tools/claude
 ```tf
 module "claude-code" {
   source         = "registry.coder.com/coder/claude-code/coder"
-  version        = "3.0.2"
+  version        = "3.0.3"
   agent_id       = coder_agent.example.id
   workdir        = "/home/coder/project"
   claude_api_key = "xxxx-xxxxx-xxxx"
@@ -49,7 +49,7 @@ data "coder_parameter" "ai_prompt" {
 
 module "claude-code" {
   source   = "registry.coder.com/coder/claude-code/coder"
-  version  = "3.0.2"
+  version  = "3.0.3"
   agent_id = coder_agent.example.id
   workdir  = "/home/coder/project"
 
@@ -85,7 +85,7 @@ Run and configure Claude Code as a standalone CLI in your workspace.
 ```tf
 module "claude-code" {
   source              = "registry.coder.com/coder/claude-code/coder"
-  version             = "3.0.2"
+  version             = "3.0.3"
   agent_id            = coder_agent.example.id
   workdir             = "/home/coder"
   install_claude_code = true
@@ -108,7 +108,7 @@ variable "claude_code_oauth_token" {
 
 module "claude-code" {
   source                  = "registry.coder.com/coder/claude-code/coder"
-  version                 = "3.0.2"
+  version                 = "3.0.3"
   agent_id                = coder_agent.example.id
   workdir                 = "/home/coder/project"
   claude_code_oauth_token = var.claude_code_oauth_token

registry/coder/modules/claude-code/main.tf

@@ -246,6 +246,12 @@ locals {
       4. Use "state": "complete" only when finished with a task
       5. Use "state": "failure" when you need ANY user input, lack sufficient
       details, or encounter blockers
+
+      In your summary on coder_report_task:
+      - Be specific about what you're doing
+      - Clearly indicate what information you need from the user when in "failure" state
+      - Keep it under 160 characters
+      - Make it actionable
     EOT
 
   # Only include coder system prompts if report_tasks is enabled