Add 3-Day Outlook generation

docs/operations.md

@@ -2,18 +2,21 @@
 
 ## Normal Workflow
 
-The implemented Daily-family generation workflows are:
+The implemented generation workflows are:
 
 ```text
 weatherreporter generate daily --date 2026-05-29
 weatherreporter generate tomorrow
+weatherreporter generate three-day
 weatherreporter run evening
 ```
 
-These commands fetch weather data, build a Daily briefing for the resolved
-valid date, build the prompt input data package, run `scriptorium render`, run
+These commands fetch weather data, build a briefing for the resolved valid
+period, build the prompt input data package, run `scriptorium render`, run
 `scriptorium run`, and write inspectable artifacts under the configured
-workspace. The evening run resolves only the Tomorrow Planning Brief.
+workspace. The evening run resolves only the Tomorrow Planning Brief. The
+morning run can generate Daily Today and the 3-Day Outlook when the resolved
+batch does not include an unsupported report type.
 
 ## Filesystem Layout
 
@@ -26,22 +29,34 @@ workspace/
       YYYY-MM-DD/
         <run_id>.briefing.json
         <run_id>.metadata.json
+    three-day/
+      YYYY-MM-DD/
+        <run_id>.briefing.json
+        <run_id>.metadata.json
   data-packages/
     daily/
       YYYY-MM-DD/
         <run_id>.data_package.json
+    three-day/
+      YYYY-MM-DD/
+        <run_id>.data_package.json
   preflight/
     daily/
       YYYY-MM-DD/
         <run_id>.render.json
+    three-day/
+      YYYY-MM-DD/
+        <run_id>.render.json
   reports/
     daily/
       <run_id>.md
+    three-day/
+      <run_id>.md
 ```
 
 The Markdown report is written to a RunID-managed report path. When `--out` is
-provided to `generate daily` or `generate tomorrow`, the managed report is also
-copied to that path.
+provided to `generate daily`, `generate tomorrow`, or `generate three-day`, the
+managed report is also copied to that path.
 
 ## Run Identifiers
 
@@ -56,7 +71,7 @@ date do not overwrite each other.
 
 ## Metadata
 
-Each Daily generation writes metadata that links:
+Each generated report writes metadata that links:
 
 - RunID
 - report ID and prompt ID
@@ -75,6 +90,9 @@ data package. Daily Today and Daily Tomorrow can compare with each other when
 they cover the same valid local date. Meaningful changes are included under
 `recentChanges.items`.
 
+3-Day Outlook generation compares against a prior compatible 3-Day briefing
+snapshot for the same valid local date when one exists.
+
 When no prior comparable snapshot exists, or no configured threshold is crossed,
 the Recent Changes list is empty.