geo: measure the block street profile and fix the local CRS and origin

New Geo/scripts/street_profile.py measures the 279.4 m block centreline, the
three signalised crossings (20.9-25.9 m across), sidewalk centrelines at 12.6 m
and 13.6 m, and per-building setbacks of 13.0-15.8 m. Derived sidewalk widths
of ~4.0 m south and ~5.3 m north cross-check against the mapped centrelines.

Geo/manifests/local-origin.md fixes EPSG:26911 and the Highland intersection
node as origin, defines the axes and the x100 metre-to-centimetre rule, and
leaves the projected pair blank because PROJ is not installed here.

Records the lane-count discrepancy (4 tagged lanes over a 20.9 m carriageway).

Geo/README.md

@@ -13,7 +13,7 @@ OSM is layout data only. It is not authoritative for façade detail, height, or
 | `Geo/manifests/` | One manifest per saved extract (see below) |
 | `Geo/scripts/` | Repeatable fetch and conversion helpers |
 
-Current state: the two El Capitan footprints are verified in [`verification/2026-11-06-el-capitan-block.md`](verification/2026-11-06-el-capitan-block.md). The block-wide extract, boundary intersections, north-side enumeration, and elevation check are open.
+Current state: the extract, both El Capitan footprints, the demo bounds, the building sets, the street profile, and the designated crossing are recorded in [`verification/`](verification/). The local CRS and origin are fixed in [`manifests/local-origin.md`](manifests/local-origin.md), with the projected easting/northing still to be computed. Elevation and the hero façade width remain open.
 
 ## Required manifest