Finish the move off weblorgmigrate-to-orgo

Remove what the migration left behind, then cut build.py down to the work
orgo does not do: 443 lines to 168.

- Delete publish.el and theme/templates/, superseded by content/orgo.toml
  and content/templates/. theme/static/ stays; orgo publishes it as assets.
- Drop the tag builder, the org-source copy, and the helpers that only fed
  them. orgo generates /tags/ and a page per tag from a collection.
- Rewrite the README and the migration-era comments that explained the
  config by pointing at what weblorg used to do.
- Serve styles.css as authored. Minifying 1KB of CSS saved 52 bytes over
  the wire once compressed, which did not pay for a build step and a
  toolchain dependency.
- Stop wiping the output directory. The .orgo-cache.json inside it is what
  makes a build incremental, and orgo already prunes outputs whose source
  is gone and re-emits any that are missing. Production keeps .build/ and
  development gets .build-dev/, because production rewrites image URLs in
  the output and a shared directory would let one environment reuse pages
  rendered for the other.

An incremental build is byte-identical to a clean one, and the site output
is unchanged apart from the /uses/ stack row.

1 files changed, 4 insertions, 12 deletions

diff --git a/content/orgo.toml b/content/orgo.toml
index 307df57..c78b365 100644
--- a/content/orgo.toml
+++ b/content/orgo.toml
@@ -5,9 +5,6 @@
 #
 #   orgo serve content -o /tmp/preview      # write and preview
 #   orgo build content -o _site --strict    # build for real, failing on broken links
-#
-# This sits alongside the existing weblorg setup (publish.el, theme/) and changes nothing
-# about it. Delete this file and content/templates/ to remove orgo entirely.
 
 [site]
 title = "cleberg.net"
@@ -21,8 +18,7 @@ base_url = "https://cleberg.net"
 [nav]
 # Explicit, because the pages that belong in the nav are not all top-level: /blog/ and
 # /garden/ are generated below, and salary/ is a section index one level down. index.org
-# is deliberately absent — the layout writes the Home link itself, exactly as weblorg's
-# base.html does.
+# is deliberately absent — the layout writes the Home link itself.
 #
 # Generated pages are named by their output path, authored ones by their source. Listing
 # them together is what puts Salary last: a collection with `nav = true` that is not
@@ -32,15 +28,13 @@ mode = "explicit"
 pages = ["blog/index.html", "garden/index.html", "salary/index.org"]
 
 [build]
-# theme/static/ is weblorg's static root, published at /. orgo reads it from here
+# theme/static/ is the site's static root, published at /. orgo reads it from here
 # rather than needing its files copied next to the writing — one copy, not two.
 assets = ["../theme/static"]
 
 [templates]
 dir = "templates"
 
-# Blog posts render through post.html — the shared layout plus a reply footer — the way
-# weblorg routes them through theme/templates/post.html. Everything else uses base.html.
 # Blog posts render through post.html, which adds the reply snippet. Nothing else does:
 # the live site also invites replies on garden notes and /now/, and that is a choice
 # rather than something a directory should decide. Any page opts in for itself with
@@ -63,13 +57,11 @@ toc = true
 section_numbers = true
 
 # --- Generated pages -------------------------------------------------------------
-# These have no source .org file. weblorg produces the equivalents today through its
-# blog-index, garden-index and tags routes.
+# These have no source .org file.
 
 # The home page. Generated rather than authored, because it is a hand-written
 # introduction *plus* the most recent posts — and the post list is not something to
-# maintain by hand. The prose lives in templates/home.html, which is where weblorg keeps
-# it today too.
+# maintain by hand. The prose lives in templates/home.html.
 #
 # content/index.org was deleted to make room: it held only #+title and #+description,
 # both of which are now [site] settings above. Restore it any time with