Web UI: links to a rule open it, highlighted; rule IDs shown

A rule named in the matrix, the log, the tracer, statistics or the
dashboard opens the Rules page on its chain, scrolled to it and
highlighted (#/rules?rule=ID; the chain is looked up when the link has
none). The Rules page shows each rule's ID beside its order.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -8,6 +8,11 @@ All notable changes to Housecarl are documented here. The format follows
 
 ### Added
 
+- **Links to a rule open it.** A rule named in the matrix, the log, the
+  tracer, statistics or the dashboard's busiest rules opens the Rules
+  page on its chain, scrolled to it and highlighted (`#/rules?rule=ID`).
+  The Rules page shows each rule's ID (`#410`, as `hc` and labels name
+  it) beside its order.
 - **A clearer zone matrix.** A cell reads allow, block, or **partly**
   (some new connections let through, the rest not), with the exceptions
   counted by what they do (`+3 -1` instead of `+4`), and what they let
@@ -17,6 +22,8 @@ All notable changes to Housecarl are documented here. The format follows
   between its interfaces passes the firewall). The details list each
   rule's hits. API: `summary`, `allowed`, `blocked`, `open`,
   `same_zone`, `note`, `hits`, and `short` and `hits` per exception.
+  Raw rules that are a match and then accept, drop or reject (without
+  interfaces) are read instead of shown as unknown.
 - **Shadow mode** (`shadow.enabled` in housecarl.yaml; docs/shadow.md):
   Housecarl's ruleset is loaded beside the firewall you have but blocks,
   rejects and translates nothing. Drops and rejects are counted and accept