release: bump version to 0.5.2

plugin.json was stuck at 0.4.1 — never bumped past the 0.5.0 / 0.5.1
release tags. Catch it up and bump to 0.5.2 for this release.

Synced version references:
- .claude-plugin/plugin.json: 0.4.1 -> 0.5.2
- docs/install/claude-code.md: example `claude plugin list` output
  (helix 0.5.0 -> 0.5.2) and the `--plugin-url` archive URL
  (v0.5.0.zip -> v0.5.2.zip)
- docs/demos/install-claude/session.jsonl: recorded `claude plugin list`
  output line
- website/static/demos/install-claude.cast: re-rendered

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: easel

.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "helix",
-  "version": "0.4.1",
+  "version": "0.5.2",
   "description": "HELIX methodology, artifact catalog, and routing skill for AI-assisted development.",
   "author": {
     "name": "DocumentDrivenDX",

docs/demos/install-claude/session.jsonl

@@ -6,7 +6,7 @@
 {"output": "Installing helix@helix...\n  resolved skill: helix\n  artifact catalog: workflows/activities/ (7 activities)\n✓ helix@helix installed (scope: user)\n", "pause_s": 1.0}
 {"narration": "Confirm the plugin is on the list."}
 {"shell": "claude plugin list"}
-{"output": "NAME   VERSION  SOURCE\nhelix  0.5.0    DocumentDrivenDX-helix\n"}
+{"output": "NAME   VERSION  SOURCE\nhelix  0.5.2    DocumentDrivenDX-helix\n"}
 {"narration": "The skill is available. One ask routes you into a HELIX mode.", "pause_s": 1.0}
 {"shell": "/helix check"}
 {"output": "HELIX router loaded. No docs/helix/ artifacts yet.\nNext: run frame to draft a vision and PRD.\n"}

docs/install/claude-code.md

@@ -51,7 +51,7 @@ Verify with `claude plugin list`:
 ```
 $ claude plugin list
 NAME   VERSION  SOURCE
-helix  0.5.0    DocumentDrivenDX-helix
+helix  0.5.2    DocumentDrivenDX-helix
 ```
 
 ## Install path B: session-only via `--plugin-dir` (development / CI)
@@ -67,7 +67,7 @@ claude --plugin-dir /path/to/helix
 Or load a remote `.zip` (Claude Code v2.1.128+):
 
 ```bash
-claude --plugin-url https://github.com/DocumentDrivenDX/helix/archive/v0.5.0.zip
+claude --plugin-url https://github.com/DocumentDrivenDX/helix/archive/v0.5.2.zip
 ```
 
 Session-only loads do not persist. Once Claude Code exits, the plugin

website/static/demos/install-claude.cast

@@ -6,7 +6,7 @@
 [1.9, "o", "Installing helix@helix...\r\n  resolved skill: helix\r\n  artifact catalog: workflows/activities/ (7 activities)\r\n\u2713 helix@helix installed (scope: user)\r\n"]
 [2.9, "o", "\r\n\u001b[2m# Confirm the plugin is on the list.\u001b[0m\r\n"]
 [3.9, "o", "\r\n\u001b[1;32mclaude plugin list\u001b[0m\r\n"]
-[4.3, "o", "NAME   VERSION  SOURCE\r\nhelix  0.5.0    DocumentDrivenDX-helix\r\n"]
+[4.3, "o", "NAME   VERSION  SOURCE\r\nhelix  0.5.2    DocumentDrivenDX-helix\r\n"]
 [4.4, "o", "\r\n\u001b[2m# The skill is available. One ask routes you into a HELIX mode.\u001b[0m\r\n"]
 [5.4, "o", "\r\n\u001b[1;32m/helix check\u001b[0m\r\n"]
 [5.8, "o", "HELIX router loaded. No docs/helix/ artifacts yet.\r\nNext: run frame to draft a vision and PRD.\r\n"]