…text directory

- Fix: Restore executed_hypotheses variable definition in generate_hypotheses.py
- Refactor: Remove agent/context directory, move files to appropriate node directories
  - context_building.py → nodes/hypothesis_execution/
  - service_graph.py → nodes/frame_problem/
  - utils.py → nodes/hypothesis_execution/
- Update all imports to use new file locations
- Fix linting issues (whitespace, formatting)

- Rename: graph_routing.py → routing.py
- Update import in graph_pipeline.py
- Fix linting issues:
  - Use contextlib.suppress instead of try/except/pass (SIM105)
  - Combine nested if statements (SIM102)
  - Fix whitespace issues (W293)
  - Fix formatting with ruff format
  - Fix E402 import issue in tests/run_demo.py

- Fix: Check if existing evidence exists before skipping evidence gathering
- Previously: When plan_sources was empty, hypothesis_execution would skip
  gathering evidence even if no evidence existed
- Now: Only skip if we have both executed sources AND existing evidence
- If no evidence exists, always attempt to gather from context
- This fixes the 'No evidence sources were successfully checked' error

- Remove 'tracer' source type (duplicate of 'tracer_web')
  - Both use the same TracerClient (tracer_cloud_app)
  - Keep only 'tracer_web' for consistency
- Remove build_context_tracer() function (unused)
- Update EvidenceSource type to exclude 'tracer'
- Update all references to use only 'tracer_web'
- Fix confusing message: 'gathering evidence from context' →
  'gathering evidence from available metadata' (clearer terminology)

- Create clients/ folder for service client modules:
  - cloudwatch_client.py
  - s3_client.py
  - tracer_client/ (entire module)
- Create tool_actions/ folder for service-specific tool actions:
  - s3_actions.py (S3 tool actions)
  - cloudwatch_actions.py (CloudWatch tool actions)
  - tracer_actions.py (Tracer tool actions)
- Update all imports across codebase to use new structure
- Remove old tools.py (split into service-specific files)
- Update __init__.py files to export from new locations
- Fix internal imports in tracer_client module

…d add LangSmith tracking

- Rename rca_report_publishing to publish_findings (simpler naming)
- Combine validate_analysis into diagnose_root_cause:
  - Simplified diagnose_root_cause significantly (removed complex investigation logic)
  - Integrated validation directly into diagnosis step
  - Removed separate validate_analysis node
- Add @Traceable decorators to all nodes for LangSmith tracking:
  - node_frame_problem
  - node_generate_hypotheses
  - node_hypothesis_execution
  - node_diagnose_root_cause
  - node_publish_findings
- Update graph_pipeline to remove validate_analysis node
- LLM calls are automatically tracked via LangChain (if LANGSMITH_API_KEY is set)
- Track node latency in diagnose_root_cause

- Remove incorrect call to check_evidence_sources with empty dict
- This was causing error message to be printed even when evidence exists
- Now only checks if web_run.get('found') is True directly

- Remove whitespace from blank line in llm.py
- Auto-format all files with ruff format
- Ensure all files pass ruff check and format

- Update frame_problem_test to expect superfluid_prod_pipeline instead of events_fact
- This matches the actual data in grafana_alert.json fixture

- Add _extract_org_id_from_jwt function to tracer_client
- Auto-extract org_id from JWT if TRACER_ORG_ID env var not set
- Update tests to not require TRACER_ORG_ID (extracted from JWT)

- Use DEFAULT_ORG_ID = org_33W1pou1nUzYoYPZj3OCQ3jslB2
- Remove JWT extraction logic (simpler)
- Still allows env var override if needed

- Tracer client already has default URL (staging.tracer.cloud)
- Tests now only require ANTHROPIC_API_KEY and JWT_TOKEN
- All 4 tests pass

- Add DEFAULT_BASE_URL = https://staging.tracer.cloud
- Fix context_building.py default (was localhost:3000)
- Only JWT_TOKEN is required now

- Use 'or' instead of default param (handles empty string)
- Auto-add https:// if protocol missing
- Remove redundant warning message in hypothesis_execution

- Remove all os.getenv calls for these values
- DEFAULT_ORG_ID = org_33W1pou1nUzYoYPZj3OCQ3jslB2
- DEFAULT_BASE_URL = https://staging.tracer.cloud
- Only JWT_TOKEN is required from environment
- Remove unused _extract_org_id_from_jwt function