feat: extract pipeline API from CLI + release v0.1.30 (#25)

Extract run_pipeline() from init_cmd.py into repowise.core.pipeline,
enabling programmatic usage without CLI dependencies. The CLI is now a
thin wrapper around the pipeline module.

- Add repowise.core.pipeline (orchestrator, progress callback protocol)
- Add RichProgressCallback adapter in cli/ui.py
- Simplify init_cmd.py to use run_pipeline() + unified _persist_result()
- Add repowise.core.pipeline to pyproject.toml packages list
- Update .gitignore for hosted backend artifacts
- Remove tracked .claude/settings.local.json
- Bump version to 0.1.30

Author: RaghavChamadiya

.claude/settings.local.json

@@ -1,3 +1,11 @@
+# Hosted backend (private, not part of the open-source project)
+backend/
+hosted_backend_plan/
+migrations/
+
+# Outreach / marketing data
+repowise_outreach_targets.csv
+
 # IDE/tool caches
 .sfdx/
 

.gitignore

@@ -6,4 +6,4 @@
 AI-generated documentation.
 """
 
-__version__ = "0.1.29"
+__version__ = "0.1.30"