refactor(kyberforge): retrofit forge to the ADR-0020 contract

Description 648 -> 387 chars, body 1093 -> 541 words. This was the last
body FAIL in the 39-skill corpus.

The body was not trimmed to fit. forge routes four artifact types that a
single invocation classifies between, so the contract requires a dispatch
table plus the gates common to every route, with each route self-contained
in references/. Adds references/author-routes.md (skill and agent),
references/apm-routes.md (plugin and marketplace entry) and
references/version-bump.md. Skill and agent share one file: they differ on
one axis only, which audit skill verifies the result.

Fixes three defects the first pass introduced or relocated:

- references/apm-routes.md claimed `apm audit` "already runs inside
  apm-workflow's own flow" and told the agent to confirm it ran clean.
  apm-workflow dispatches audit as its own row; the configure and
  marketplace rows never reach it. That was the only completion check
  these routes had, and it could never be satisfied. Replaced with a
  manual read-back the agent performs itself.
- "Read only the reference file" forbade the multi-artifact case the same
  body documents two lines later, and ADR-0011 records eight artifacts
  authored in one pass.
- The announce gate became a closing gate, reachable only after the
  invocation it was meant to precede. Moved to the end of Step 2.

Also restores the artifact enumeration to the plugin row, normalises to
bare unnamespaced skill names per AGENTS.md, adds a dispatch fallback for
artifacts matching no row, and corrects three provenance entries -- one
asserted a contribution that did not happen.

Refs #99

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MWb5RQgCL1ye7cGp2RPb2u

plugins/kyberforge/skills/forge/references/sources.md

@@ -4,15 +4,15 @@
 
 - **URL:** https://code.claude.com/docs/en/sub-agents
 - **Research doc:** plugins/kyberforge/docs/research/docs/claude-code-plugins/sources.md
-- **Description:** Official Claude Code subagent reference — definition format, all frontmatter fields, scope priority, built-in agents, CLI flags, environment variables, known limitations. Grounds Step 3's fork-vs-inline invocation logic: fork inherits full conversation history via `/fork` or `subagent_type: "fork"`, is not a declarable frontmatter field on any agent definition, cannot be nested (a fork cannot spawn another fork), and is a caller-side invocation choice rather than a property of the artifact being routed to.
-- **Contributing files:** SKILL.md
+- **Description:** Official Claude Code subagent reference — definition format, all frontmatter fields, scope priority, built-in agents, CLI flags, environment variables, known limitations. Grounds the fork-vs-inline invocation logic in `references/author-routes.md`, the always-inline decision for the apm routes in `references/apm-routes.md`, and the clean-context bump subagent in `references/version-bump.md`: fork inherits full conversation history via `/fork` or `subagent_type: "fork"`, is not a declarable frontmatter field on any agent definition, cannot be nested (a fork cannot spawn another fork), and is a caller-side invocation choice rather than a property of the artifact being routed to.
+- **Contributing files:** SKILL.md, references/author-routes.md, references/apm-routes.md, references/version-bump.md
 - **Status:** `extracted`
 
 ## context7-websites-code-claude
 
 - **URL:** context7:/websites/code_claude
 - **Research doc:** plugins/kyberforge/docs/research/docs/claude-code-plugins/sources.md
-- **Description:** Official Claude Code documentation site indexed by Context7 — confirms the `context: fork` skill-level frontmatter field means isolated/fresh execution, the opposite of what the `/fork` subagent command does (inherits conversation). Informs the Gotchas entry warning against conflating the two.
+- **Description:** Official Claude Code documentation site indexed by Context7 — confirms the `context: fork` skill-level frontmatter field means isolated/fresh execution, the opposite of what the `/fork` subagent command does (inherits conversation). Informs the Gotchas entry in `SKILL.md` warning against conflating the two; nothing else in this skill draws on it, and no `references/` file mentions the `context: fork` field.
 - **Contributing files:** SKILL.md
 - **Status:** `extracted`
 
@@ -28,7 +28,7 @@
 
 - **URL:** https://agentskills.io/specification.md
 - **Research doc:** plugins/kyberforge/docs/research/docs/agentskillsio/sources.md
-- **Description:** Complete SKILL.md format specification — confirms `assets/`, `references/`, and `scripts/` are warranted only by the bulk/reusability of supporting content (large reference material, executable code, templates), not by a skill's category. forge has none of that bulk, so a lean SKILL.md-plus-provenance-file shape is spec-legitimate; the `references/sources.md` in this directory exists for this repo's own provenance-chain convention (see `CONTEXT.md`), not because the spec requires it.
+- **Description:** Complete SKILL.md format specification — confirms `assets/`, `references/`, and `scripts/` are warranted only by the bulk/reusability of supporting content (large reference material, executable code, templates), not by a skill's category, and forge's per-route procedures are that kind of supporting content — so the spec permits the `references/` split here but does not require it. The warrant is a house decision: ADR-0020's rule that dispatch is mandatory at two or more mutually exclusive flows, which forge's four-row table is. `references/sources.md` likewise exists for this repo's own provenance-chain convention (see `CONTEXT.md`), not because the spec requires it.
 - **Contributing files:** SKILL.md
 - **Status:** `extracted`