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- Delete publish.el and theme/templates/, superseded by content/orgo.toml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, 0 insertions, 27 deletions

diff --git a/theme/templates/garden.html b/theme/templates/garden.html
deleted file mode 100644
index a14d50c..0000000
--- a/theme/templates/garden.html
+++ /dev/null
@@ -1,27 +0,0 @@
-{% extends "base.html" %} {% block subtitle %}garden - {% endblock %} {% block main %}
-<h1>Garden</h1>
-<p>Notes in various states of growth. Some are stubs, some are developed. Browse
-around.</p>
-<section>
-  <h2>🪴 The Growth Stages</h2>
-  <p>Instead of dates, these metadata labels show how mature a page is:</p>
-  <span><strong>🌱 Seedlings:</strong> Rough notes, raw ideas, or "half-baked"
-  thoughts.</span><br>
-  <span><strong>🌿 Budding:</strong> Notes that have some structure and a few
-  internal links.</span><br>
-  <span><strong>🌳 Evergreen:</strong> High-conviction ideas that are
-  well-researched and stable.</span><br>
-  <span><strong>🍂 Compost:</strong> Ideas you no longer agree with but want to
-  keep for historical context.</span><br><br>
-</section>
-<ul>
-  {% for post in posts %}
-  <li>
-    <a href='{{ url_for("garden", slug=post.slug) }}'>{{ post.title }}</a>
-    {% if post.description %}
-    <span>{{ post.description }}</span>
-    {% endif %}
-  </li>
-  {% endfor %}
-</ul>
-{% endblock %}