comments that explain the code, not how it was written

About 340 comments cited the development process: task and plan
numbers, fix waves, rulings, reviewers, and the author in the third
person with a date. None of that exists outside the work itself, so to
a reader it pointed at nothing. Each one now states the engineering
reason it was standing in front of; where a comment was provenance and
nothing else, it is gone.

References to docs/design.md and docs/gui-design.md by section stay:
both ship with the repository. The design documents lose their
amendment diaries - CHANGELOG.md is that record - and the GUI's says
plainly that the window has gone further than the document.

Only comments changed. Every .go file was parsed and its code printed
with comments stripped, before and after: the two hashes are identical
across all 175 files.

1 files changed, 3 insertions, 3 deletions

diff --git a/internal/plan/placeholder_test.go b/internal/plan/placeholder_test.go
index e155430..531a51f 100644
--- a/internal/plan/placeholder_test.go
+++ b/internal/plan/placeholder_test.go
@@ -30,7 +30,7 @@ func TestExpand(t *testing.T) {
 		{"{mtime:%j}", "227"},
 		{"{now:%Y-%m-%d}", "2026-09-12"},
 		{"{1}", "2026"},
-		// D2: an expanded value that itself contains "}}" must reach the
+		// An expanded value that itself contains "}}" must reach the
 		// output unchanged. Expand's single-pass scanner jumps past a
 		// placeholder's closing brace, so written bytes are never re-scanned;
 		// a refactor to scan-then-replace would silently re-collapse them.
@@ -77,11 +77,11 @@ func TestExpandErrors(t *testing.T) {
 		{"{name", "unclosed placeholder"},
 		{"{mtime:%Q}", "unknown time format %Q in {mtime:...}"},
 		{"{mtime}", "unknown placeholder {mtime}"},
-		// B3: the error must name the placeholder actually written ("now"),
+		// The error must name the placeholder actually written ("now"),
 		// not hardcode "mtime" - the {mtime:%Q} case above passes either
 		// way, which is why that defect survived.
 		{"{now:%Q}", "unknown time format %Q in {now:...}"},
-		// D3: {1}...{9} is the syntax (spec §7.3); {10} and up must be
+		// {1}...{9} is the syntax (spec §7.3); {10} and up must be
 		// rejected the same way an unknown placeholder is.
 		{"{10}", "unknown placeholder {10}"},
 	}