Initial import: eCW Charge Validation bot and results Portal

Snapshot of the working project as of 2026-10-23 (local 2d4d4fc), one
commit with no earlier history: the tracked files were de-identified
first (synthetic claim ids and patient data only; see Context.md
section 7). Credentials, run logs, screenshots, claim reports and client
workbooks are gitignored and not included.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,51 @@
+# Credentials — NEVER commit
+.env
+
+# Run artifacts. Input/ and Output/ hold claims reports — patient data — so
+# they are ignored for the same reason .env is, not merely because they are
+# generated.
+Logs/
+Screenshots/
+Input/
+# Output/ also holds Output/claims/*.json - one file per claim.
+Output/
+
+# Client files and live captures kept in the project root - patient data
+# (PHI) and the client's own documents, ignored for the same reason Input/
+# and Output/ are. Dom.txt is a DOM capture of a live claim; the two workbooks
+# (Charge Condition Document.xlsx, Charge Summary File Format.xlsx) are the
+# client's. They sat untracked but NOT ignored, so a single `git add -A` would
+# have put them in history (review item P12, 2026-10-01). They stay where they
+# are - the operator has them open in Excel and Context.md refers to them in
+# place - so the rules match them there instead of moving them.
+# Root-anchored (the leading /) so only the root copies are matched; nothing
+# tracked today is an .xlsx or a Dom*.txt.
+/Dom*.txt
+/*.xlsx
+# Excel/Word lock files ("~$Charge Condition Document.xlsx") - created while a
+# workbook is open, and they carry the user name. Never project content.
+~$*
+
+# Python
+__pycache__/
+*.pyc
+*.pyo
+.venv/
+venv/
+
+# Playwright
+playwright-report/
+test-results/
+
+# OS / editor
+Thumbs.db
+.DS_Store
+.vscode/
+.idea/
+
+# Local Claude Code permission allowlist — operator/session-specific, not
+# project config.
+.claude/settings.local.json
+
+# Reference videos — large binaries that don't belong in git history.
+*.mp4