site: cut the template's own labels out of the pages

Point 7 of the page-wording review. The pages no longer show their data
structure as headings, and they no longer explain their own conventions.

- Level 1 is one screen: claim, status badge, three figures, the technology
  row, and one sentence carrying one link. Measured in headless Chrome at
  1440x900: 1404-1845 px tall before, exactly 900 px (no scroll) after, on
  all six area pages.
- DocPage: no kicker line, no visible level label, no "Evidence for this
  page" heading or instruction note, no "Drill-downs" list, no
  "Status <word> - sentence" footer. The artefact table starts at level 2,
  under the heading "Artefacts"; the history timeline is level 2 only.
- Landing page: "Start here" link text gone, "How to read this site" panel
  gone, the footer's status-label explainer gone.
- Content, presentation only, no claim softened: the leading H1 that
  duplicated the page title removed from all 41 documents; level 1 bodies
  reduced to the constraint as ordinary prose plus the way in;
  "**Status: ...**" prefixes removed from the artefact stubs; "## Drill-downs"
  and "## Period and confidence" removed from the level 2 pages, with the
  cross-area links moved into the prose.
- The six level 1 claims are now sentences with a subject, and use commas
  instead of middots. Same facts, no new ones.

Not in this commit: the 35 level 2 and 3 claims still use the compact CV
style. That is a voice decision for Sam, not a wording tidy-up.

make validate: 41 documents, 0 violations. go test ./...: pass.

(cherry picked from commit 03009f80fc7815ad7719412e125df9297a6e653f)

content/edge/edge-fleet.md

@@ -14,8 +14,6 @@ last_verified: 2026-10-26
 tags: [edge, iot, esp32, lora, zigbee, audio]
 ---
 
-# Constrained devices · custom radio · and a record of what broke
-
 **Capability statement.** Devices that must run for months on a small battery, talk over radio that was chosen for range rather than convenience, and fail in ways that are visible. Twenty or more nodes, nine zones, twenty automations, and a voice layer on top of all of it.
 
 ## What is actually run
@@ -50,16 +48,4 @@ tags: [edge, iot, esp32, lora, zigbee, audio]
 - **Some things are still manual.** The garden automation is partly manual — some watering and lighting is scheduled, some is a person turning something on. The page says which is which instead of implying full coverage.
 - **The failures cost money and are kept.** A lizard destroyed a feeder built for it. The garden cameras were postponed with the parts already bought. The doorbell is being rebuilt rather than declared finished. Those are the most honest evidence of production experience on this site.
 
-## Drill-downs
-
-- [Edge architecture — power · radio · deep sleep](l3/edge-architecture.md) — level 3
-- [LoRa irrigation under solar power](l3/edge-lora-sprinkler.md) — level 3
-- [Hand-built Zigbee routers and lighting](l3/edge-zigbee.md) — level 3
-- [Distributed audio — eight endpoints with ducking](l3/edge-snapcast.md) — level 3
-- [Front door — vision · voice · and a rebuild](l3/edge-front-door.md) — level 3
-- [Sensors and actuation](l3/edge-sensors.md) — level 3
-- [The failures, kept in the record](l3/edge-failures.md) — level 3
-
-## Period and confidence
-
-`period: 2020–`, anchored on the homelab year in the evidence notes. Confidence is `running` for the fleet as a whole; individual nodes carry their own label, and the ones being rebuilt or postponed are labelled that way on their pages.
+Individual nodes carry their own label, and the ones being rebuilt or postponed are labelled that way on their pages.

content/edge/edge-overview.md

@@ -3,7 +3,7 @@ id: edge-overview
 area: edge
 level: 1
 title: "Edge & Devices"
-claim: "Builds and maintains a twenty-node edge fleet — constrained devices · custom radio · solar power · deep sleep · and sensors — reporting into a single automation layer."
+claim: "Sam builds and maintains a twenty-node edge fleet — constrained devices on solar power and deep sleep, with custom radio and sensors — that reports into a single automation layer."
 confidence: running
 period: "2020–"
 tech: [ESP32, LoRa, Zigbee, MQTT, Home Assistant, Snapcast, Raspberry Pi]
@@ -13,13 +13,4 @@ public: true
 last_verified: 2026-10-26
 tags: [edge, iot, esp32, lora, zigbee]
 ---
-
-# Edge & Devices
-
-**Claim.** Twenty or more nodes — ten ESP32 devices, two hand-built Zigbee routers and eight Pi audio endpoints — across nine lighting zones and twenty automations, all reporting into one automation layer.
-
-**Status.** Running. Some of it is finished, some is being rebuilt, and at least one thing was destroyed by the animal it was built for. All three states are shown.
-
-**Why it is credible.** These devices are outdoors, on solar, in deep sleep, and they must keep working when nobody is looking. The failures on this page cost real time and are documented as failures.
-
-**Start here.** [The capability page](edge-fleet.md) covers the architecture, the radio, the audio and what broke.
+The devices are outdoors on solar and asleep most of their lives, and they have to keep working when nobody is looking; what failed is written down. The architecture, the radio and the failures are on the [fleet page](edge-fleet.md).

content/edge/l3/edge-architecture.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, architecture, power, artefact]
 ---
 
-# Artefact — Edge architecture · power · radio · deep sleep
-
-**Status: stub.** One annotated diagram of a representative node and the radio path lands in Phase 7.
+One annotated diagram of a representative node and the radio path lands in Phase 7.
 
 ## What the artefact is
 

content/edge/l3/edge-failures.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, failures, artefact]
 ---
 
-# Artefact — The failures · kept in the record
-
-**Status: in progress.** Two items are being rebuilt, one is postponed. The page is not finished because the work is not finished.
+Two items are being rebuilt, one is postponed. The page is not finished because the work is not finished.
 
 ## What the artefact is
 

content/edge/l3/edge-front-door.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, doorbell, vision, voice, artefact]
 ---
 
-# Artefact — Front door · vision · voice · and a rebuild
-
-**Status: in progress.** The device was built and is being rebuilt. The page states this rather than describing it as finished.
+The device was built and is being rebuilt. The page states this rather than describing it as finished.
 
 ## What the artefact is
 

content/edge/l3/edge-lora-sprinkler.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, lora, solar, irrigation, artefact]
 ---
 
-# Artefact — LoRa irrigation under solar power
-
-**Status: stub.** The bill of materials and the wake-on-radio change land in Phase 7.
+The bill of materials and the wake-on-radio change land in Phase 7.
 
 ## What the artefact is
 

content/edge/l3/edge-sensors.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, sensors, actuation, artefact]
 ---
 
-# Artefact — Sensors and actuation
-
-**Status: stub.** A sensor and actuator table lands in Phase 7.
+A sensor and actuator table lands in Phase 7.
 
 ## What the artefact is
 

content/edge/l3/edge-snapcast.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, audio, snapcast, artefact]
 ---
 
-# Artefact — Distributed audio · eight endpoints with ducking
-
-**Status: stub.** The topology diagram and a short recording of ducking land in Phase 7.
+The topology diagram and a short recording of ducking land in Phase 7.
 
 ## What the artefact is
 

content/edge/l3/edge-zigbee.md

@@ -14,9 +14,7 @@ last_verified: 2026-10-26
 tags: [edge, zigbee, lighting, artefact]
 ---
 
-# Artefact — Hand-built Zigbee routers and lighting
-
-**Status: stub.** The router build and a zone map land in Phase 7.
+The router build and a zone map land in Phase 7.
 
 ## What the artefact is