PE hyperstack: fix duplicate SessionStart hook (v1.1.1)

[KailasMahavarkar]

Problem

On 1.1.0 the plugin fails to load its hook in Claude Code:

Error: Hook load failed: Duplicate hooks file detected: ./hooks/hooks.json
resolves to already-loaded file .../1.1.0/hooks/hooks.json.
The standard hooks/hooks.json is loaded automatically, so manifest.hooks
should only reference additional hook files.

.claude-plugin/plugin.json declares "hooks": "./hooks/hooks.json", but Claude Code auto-loads the standard hooks/hooks.json. The explicit reference duplicates it, the hook load fails, and the SessionStart bootstrap injection stops firing - the core enforcement mechanism is silently lost on a fresh session.

Fix

File	Change
.claude-plugin/plugin.json	remove the redundant "hooks" field (the file still auto-loads); version 1.1.0 → 1.1.1
.claude-plugin/marketplace.json	metadata.version + plugin entry version 1.1.0 → 1.1.1

.cursor-plugin/plugin.json is unaffected - it references a distinct hooks/hooks-cursor.json, not the auto-loaded file.

Verification

$ claude plugin validate ~/.hyperstack
✔ Validation passed

versions agree: plugin.json 1.1.1 | hooks <removed> | marketplace entry 1.1.1 | marketplace meta 1.1.1

Confirmed locally: removing the field clears the Duplicate hooks file detected error - claude plugin list shows hyperstack@hyperstack 1.1.0 ✔ enabled with no hook errors after the same edit applied to the cache.