274: put the lyric back into road order

Two places where the sung order did not follow the carriageway.

楓駐車帯 moves up one line, between 千紫橋 and 万紅橋. It sits at km 57.08,
between their 56.60 and 57.25 — it was sung after 万紅橋.

穂別長和 splits into two headers around the 稲里 block. The road runs
長和 → 稲里 → 長和, but the two 長和 stretches had been welded into one
block sung first, so the 稲里 block then started 10.84 km behind where the
previous line left off. Now:

  長和  62.36 - 62.94   オマナイ橋, 桂木橋
  稲里  64.44 - 71.86   大和橋 … 穂別ダム神社
  長和  72.02 - 75.28   長和トンネル … 稲里トンネル

This is the same repeated-header pattern the song already uses for
由仁町川端 / 栗山町滝下 at the opening, where the road crosses back over
the 夕張川.

Applied to both 274.md and 274.lrc; the two are now identical, 98 lines
each. Lyric order is monotonic by kilometre end to end.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

wip/274/274.md

@@ -54,8 +54,8 @@ Codename `Yuubari 2` but I've decided that this will be more about Route 274. Th
 
 夕張市楓
 千紫橋
-万紅橋
 楓駐車帯
+万紅橋
 登川神社
 楓信号場
 登川橋
@@ -68,11 +68,6 @@ Codename `Yuubari 2` but I've decided that this will be more about Route 274. Th
 勇払郡むかわ町穂別長和
 オマナイ橋
 桂木橋
-長和トンネル
-穂別大橋
-山水橋
-沼の沢橋
-稲里トンネル
 
 勇払郡むかわ町穂別稲里
 大和橋
@@ -85,6 +80,13 @@ Codename `Yuubari 2` but I've decided that this will be more about Route 274. Th
 佐主橋
 穂別ダム神社
 
+勇払郡むかわ町穂別長和
+長和トンネル
+穂別大橋
+山水橋
+沼の沢橋
+稲里トンネル
+
 勇払郡むかわ町穂別福山
 ペンケ橋
 下福山橋