added dotenv and completed t1.1

pm/tasks.org

@@ -1,4 +1,4 @@
-* [ ] t1.1: harden giant receipt fetch cli (2-4 commits)
+* [X] t1.1: harden giant receipt fetch cli (2-4 commits)
 ** acceptance criteria
 - giant scraper runs from cli with prompts or env-backed defaults for `user_id` and `loyalty`
 - script reuses current browser session via firefox cookies + `curl_cffi`
@@ -12,9 +12,9 @@
 - raw json archive remains source of truth
 
 ** evidence
-- commit:
-- tests:
-- date:
+- commit: `d57b9cf` on branch `cx`
+- tests: `./venv/bin/python -m unittest discover -s tests`; `./venv/bin/python scraper.py --help`; verified `.env` loading via `scraper.load_config()`
+- date: 2026-03-14
 
 * [ ] t1.2: define grocery data model and file layout (1-2 commits)
 ** acceptance criteria
@@ -28,7 +28,7 @@
 - explicitly separate retailer-specific parsing from cross-retailer canonicalization
 
 ** notes
-- this is the guardrail task so we don’t make giant-specific hacks the system of record
+- this is the guardrail task so we don't make giant-specific hacks the system of record
 - keep schema minimal but extensible
 
 ** evidence