fix(#1269): align comment-is-too-wide motive with the 100-char limit (#1293)

The lint has enforced 100 characters since 11d6464 ("100 chars per
line in comments"), but the motive still documented 80. The docs are
the stale side, so update the motive and pin the actual threshold
with boundary packs (100 chars allowed, 101 flagged).


Claude-Session: https://claude.ai/code/session_01LtRC58UjpmCN3yncfPAmhA

Co-authored-by: Claude <noreply@anthropic.com>

Author: yegor256

src/main/resources/org/eolang/motives/comments/comment-is-too-wide.md

@@ -1,11 +1,11 @@
 # Comment Is Too Wide
 
-Each comment should not be wider than 80 characters.
+Each comment should not be wider than 100 characters.
 
 Incorrect:
 
 ```eo
-# This is a very long comment that contains more than eighty characters and should be flagged by the lint as too wide.
+# This is a very long comment that contains more than 100 characters and should be flagged by the lint as too wide.
 [] > foo
 ```
 

src/test/resources/org/eolang/lints/packs/single/comment-is-too-wide/allows-comment-of-exactly-max-width.yaml

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: Copyright (c) 2016-2026 Objectionary.com
+# SPDX-License-Identifier: MIT
+---
+# yamllint disable rule:line-length
+sheets:
+  - /org/eolang/lints/comments/comment-is-too-wide.xsl
+asserts:
+  - /defects[count(defect[@severity='warning'])=0]
+input: |
+  # This comment is exactly 100 characters wide, therefore the lint must not report it as a defect here.
+
+  [] > foo
+    42 > @

src/test/resources/org/eolang/lints/packs/single/comment-is-too-wide/catches-comment-one-char-wider-than-max.yaml

@@ -0,0 +1,15 @@
+# SPDX-FileCopyrightText: Copyright (c) 2016-2026 Objectionary.com
+# SPDX-License-Identifier: MIT
+---
+# yamllint disable rule:line-length
+sheets:
+  - /org/eolang/lints/comments/comment-is-too-wide.xsl
+asserts:
+  - /defects[count(defect[@severity='warning'])=1]
+  - /defects/defect[@line='3']
+  - /defects/defect[contains(text(), 'The comment width is 101, while 100 is max allowed')]
+input: |
+  # This comment is one character wider than the limit of 100, therefore the lint reports it as too wide.
+
+  [] > foo
+    42 > @

src/test/resources/org/eolang/lints/packs/single/comment-is-too-wide/catches-multiline-wide-comment.yaml

@@ -9,7 +9,7 @@ asserts:
   - /defects/defect[@line='4']
 input: |
   # This is good line.
-  # This is a very long line that contains more than eighty characters and should be flagged by the lint as too wide.
+  # This is a very long line that contains more than 100 characters and should be flagged by the lint as too wide.
 
   [] > foo
     42 > @

src/test/resources/org/eolang/lints/packs/single/comment-is-too-wide/catches-too-wide-comment.yaml

@@ -8,7 +8,7 @@ asserts:
   - /defects[count(defect[@severity='warning'])=1]
   - /defects/defect[@line='3']
 input: |
-  # This is a very long comment that contains more than eighty characters and should be flagged by the lint as too wide.
+  # This is a very long comment that contains more than 100 characters and should be flagged by the lint as too wide.
 
   [] > foo
     42 > @