fix: remove single-quoted Python literal from claude stream processor

[alilxxey]

The claude provider pipes stream-json output through python3 -u -c '...' to track tool usage and update the dashboard orchestrator. The Grep branch used f"pattern: {tool_input.get('pattern', '')}", embedding four single quotes inside what is already a bash single-quoted string.

Bash toggles its SQ state on every literal ', so the four quotes fall back to SQ-in state (even number of toggles), hiding the problem from bash syntax checks. But each pair also strips its contents out of the SQ, so 'pattern' becomes a bare word and Python receives tool_input.get(pattern, ) -- a valid-but-wrong expression that raises NameError: name "pattern" is not defined on every Grep call.

The exception aborts the inner for item in content loop before update_orchestrator_task runs, so Grep invocations were silently missing from .loki/state/agents.json and the dashboard tool counter. Claude sessions continued, but every Grep also printed a spurious [Parse error: name 'pattern' is not defined] to stderr.

Fix: use double quotes and string concatenation, which stays safe inside bash SQ. Add BUG-RUN-004 regression assertions in tests/test-bugfix-audit.sh to prevent reintroducing the pattern.

Description

The claude provider pipes stream-json output through python3 -u -c '...'
to track tool usage in the dashboard orchestrator. The Grep branch at
autonomy/run.sh:9743 used:

  tool_desc = f"pattern: {tool_input.get('pattern', '')}"                                                           

embedding four single quotes inside what is already a bash single-quoted
heredoc. Bash cannot contain a literal ' inside '...' — every '
toggles SQ state. Four toggles leave the shell back in SQ mode (which is
why bash -n sees no syntax error), but each pair strips its contents
out of the SQ. Python receives:

  tool_desc = f"pattern: {tool_input.get(pattern, )}"                                                               

a valid-but-wrong expression — pattern is now a bare identifier
instead of a string literal — and crashes with:

  NameError: name 'pattern' is not defined                                                                        

The exception is caught at run.sh:9818 and printed to stderr as
[Parse error: name 'pattern' is not defined], which users see
repeatedly in logs — once per Grep tool call. Because the exception
exits the inner for item in content loop before
update_orchestrator_task(tool, tool_desc) runs, Grep calls are also
silently missing from .loki/state/agents.json and the dashboard
tool counter undercounts.

Reproduction

Isolated repro confirming the exact NameError:

python3 -u -c '                                                                                                       
def f(tool_input):                                                                                                    
    tool_desc = f"pattern: {tool_input.get('pattern', '')}"
    return tool_desc                                                                                                  
print(f({"pattern": "hello"}))                                                                                      
'                                                                                                                     
# NameError: name 'pattern' is not defined                                                                          
# (python traceback shows: tool_input.get(pattern, ) -- quotes stripped)                                              
                                                                                                                      
Root cause                                                                                                            
                                                                                                                      
Introduced in commit f7ea661 ("Fix dashboard to always show orchestrator                                              
agent"). In the same commit the Glob branch one line below correctly uses
double quotes (tool_input.get("pattern", "")) — only the Grep branch was                                              
written with single quotes.                                                                                           
                                                                                                                      
Unrelated to the historical CHANGELOG.md:5738 entry about                                                             
name 'pattern' is not defined — that earlier bug was in a different                                                 
Python heredoc and was fixed by switching to LOKI_CONTEXT env var.                                                    
                                                                                                                      
Fix                                                                                                                   
                                                                                                                      
Use double quotes and string concatenation, which is SQ-safe in the bash                                              
heredoc:
                                                                                                                      
tool_desc = "pattern: " + tool_input.get("pattern", "")                                                               
Added an inline comment warning future editors not to introduce single
quotes inside the python3 -u -c '...' block. The comment itself is                                                    
carefully written without any single-quote characters.                                                              
                             

## Type of Change

- [X] Bug fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that changes existing behavior)
- [ ] Documentation update
- [ ] Refactor (no functional changes)
- [ ] Test improvement

## Checklist

- [X] Shell scripts pass syntax validation (`bash -n autonomy/run.sh && bash -n autonomy/loki`)
- [X] All existing tests pass
- [X] New tests added for new functionality (where applicable)
- [X] No emojis in code, comments, documentation, or commit messages
- [X] Version bumped in all required files (if this is a release -- see CLAUDE.md Release Workflow)
- [X] Code follows existing patterns and style conventions

## CLA Acknowledgment

- [X] I have read and agree to the [Contributor License Agreement](CLA.md)