refactor: harden internal daemon entrypoint and cleanup observations

Remove the internal daemon subcommand from the public CLI surface,
start the daemon via an internal env trigger, and ensure generated
completions/help never expose internal entrypoints.

Also finish the pending observation cleanups and docs updates,
including config/key deduplication, registry matching cleanup, and
remaining roadmap/project map staleness fixes.

.gitignore

@@ -2,3 +2,5 @@
 /cache/
 /tvctl-agent-base.zip
 .DS_Store
+node-compile-cache/
+phantomjs/