Documentation that points where the documentation is

The working notes, the roadmap and the eight topic notes now live on the wiki,
so the twelve places in the source that said "see CLAUDE.md" were pointing at
a file this repository no longer has. They say "see the working notes" now,
and the README opens onto the wiki rather than onto two files beside it.

Four references are deliberately untouched -- prompts.py, settings_store.py,
admin/agents.html and the whole of agent/instructions.py. Those name AGENTS.md
and CLAUDE.md as the file an agent chat looks for in *somebody else's* project
directory. Rewriting them would have broken the feature while looking tidy.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/lembas/services/agent/index.py

@@ -18,7 +18,7 @@ a model choosing to run something. Both are read-only, both are built here
 rather than assembled from anything a model said, and the project directory is
 configuration rather than input. It is still an exception to Manual mode's
 "everything is shown to you before it happens", and it is written down in
-CLAUDE.md next to the others.
+the working notes, next to the others.
 
 **Nothing here is trusted.** Filenames come off somebody else's machine and end
 up inside a system prompt, so they are stripped of control characters, capped