Restore foundation/* aliases on three pages clobbered by the rename sed

The rename-sed run replaced /foundation/ with /set-up-a-machine/
across all docs files. On three files that had /foundation/*
entries inside their aliases list (not just as body links), this
broke the aliases:

- docs/data/capture-sync/capture-and-sync-data.md
- docs/data/capture-sync/stop-data-capture.md
- docs/hardware/common-components/add-a-camera.md

Each had two alias rows like "/foundation/add-a-camera/" that
redirected users from legacy URLs to the current canonical page.
After my sed, those aliases pointed at /set-up-a-machine/add-a-
camera/, which is not a real URL and does not resolve anywhere.
The no-more-404 Netlify plugin flagged the resulting missing
/foundation/* URLs.

Fixed by restoring the original /foundation/ and /build/foundation/
aliases. Verified locally with make build-prod:

- public/foundation/capture-and-sync-data/index.html OK
- public/foundation/stop-data-capture/index.html OK
- public/foundation/add-a-camera/index.html OK

This is the kind of thing a playbook amendment should catch. The
sed was right for body-text link updates, wrong for alias-list
updates. Future directory renames need a targeted approach that
distinguishes the two, plus a mandatory local make build-prod before
pushing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: shannonbradshaw

docs/data/capture-sync/capture-and-sync-data.md

@@ -8,8 +8,8 @@ description: "Capture data from any resource and sync it to the cloud."
 date: "2025-01-30"
 aliases:
   - /data/capture-and-sync-data/
-  - /build/set-up-a-machine/capture-and-sync-data/
-  - /set-up-a-machine/capture-and-sync-data/
+  - /build/foundation/capture-and-sync-data/
+  - /foundation/capture-and-sync-data/
 ---
 
 Configure your machine to automatically record sensor readings, camera images, and other component data, then sync it to the cloud. For an overview of how data capture and sync work, see the [Manage data overview](/data/overview/).

docs/data/capture-sync/stop-data-capture.md

@@ -8,8 +8,8 @@ description: "Stop capturing data for specific resources, all resources, or disa
 date: "2025-01-30"
 aliases:
   - /data/stop-data-capture/
-  - /build/set-up-a-machine/stop-data-capture/
-  - /set-up-a-machine/stop-data-capture/
+  - /build/foundation/stop-data-capture/
+  - /foundation/stop-data-capture/
 ---
 
 Stop data capture temporarily (during maintenance, testing, or debugging) or permanently. You can disable capture for a single resource, turn it off for all resources on a machine, or leave capture running locally but stop syncing to the cloud.

docs/hardware/common-components/add-a-camera.md

@@ -7,8 +7,8 @@ type: "docs"
 description: "Add and configure a camera component, verify the feed, and capture an image programmatically."
 date: "2025-01-30"
 aliases:
-  - /build/set-up-a-machine/add-a-camera/
-  - /set-up-a-machine/add-a-camera/
+  - /build/foundation/add-a-camera/
+  - /foundation/add-a-camera/
   - /hardware-components/add-a-camera/
   - /hardware/add-a-camera/
   - /hardware/components/add-a-camera/