feat(core): add bmad-forge-idea skill + docs (#2492)

* feat(core): add bmad-forge-idea skill

Domain-agnostic idea-forging skill for BMad core. Takes a half-formed idea
and pressure-tests it in conversation until it hardens, proves out, or dies
cheaply — the quality of thinking is the product, not an artifact. One
question at a time with an always-on anti-sycophancy stance; two opt-in gears
(adversarial attack; a persona room resolved from the installed roster,
voiced by default and spawned when a branch needs independent minds); a
memlog as durable, resumable residue. Honest exits (hardened / killed /
clearer); optional brief distilled from the memlog that can feed bmad-spec or
bmad-quick-dev. Interactive and socratic; no headless mode.

Registered in core-skills/module-help.csv (menu code FI).

* Add forge-idea documentation and finalize skill scripts/conventions

Docs (Diátaxis):
- New explanation/forge-idea.md and how-to/pressure-test-an-idea.md
- core-tools.md: catalog entry + item section for bmad-forge-idea
- workflow-map.md and getting-started.md: Phase 1 (Analysis) listing
- De-collide the "forge" verb from bmad-prfaq positioning across docs

Skill:
- forge-idea SKILL.md: add term-sharpening axis, operationalize the
  existing-project ground-truth rule, and add graceful degradation
- bmad-prfaq: description de-collision; Stage 1 now redirects upstream
  to bmad-forge-idea for an unsound idea
- Unbundle the core memlog.py copy (skill references the core script at
  {project-root}/_bmad/scripts); keep skill-local resolve_personas.py + tests
- customize.toml: comment refresh; on_complete as array

* Fix review findings: resolve_personas crash + doc accuracy

- resolve_parties: resolve token once + coerce non-strings (fixes KeyError
  on mixed-case members and TypeError on unhashable members)
- Guard malformed party-mode config shapes so discovery stays best-effort
- _brief: pass through model/capabilities; register: no name-lookup hijack
- 5 new regression tests (case-insensitivity, malformed input, rename collision)
- Docs: correct bmad-review-adversarial-general name, bmad-prfaq handoff,
  recursive resume glob, broken table row, and Produces filenames across
  forge-idea/brainstorming/product-brief/architecture rows

docs/reference/workflow-map.md

@@ -35,10 +35,11 @@ it**](../explanation/analysis-phase.md).
 
 | Workflow                                                                  | Purpose                                                                    | Produces                  |
 |---------------------------------------------------------------------------|----------------------------------------------------------------------------|---------------------------|
-| `bmad-brainstorming`                                                      | Brainstorm Project Ideas with guided facilitation of a brainstorming coach | `brainstorming-report.md` |
+| `bmad-brainstorming`                                                      | Brainstorm Project Ideas with guided facilitation of a brainstorming coach | `brainstorm.html` keepsake plus an optional `brainstorm-intent.md` |
+| `bmad-forge-idea` | Pressure-test an idea until it hardens, proves out, or dies cheaply | `forge-report.html` every run; `forged-idea.md` when an idea hardens |
 | `bmad-domain-research`, `bmad-market-research`, `bmad-technical-research` | Validate market, technical, or domain assumptions                          | Research findings         |
-| `bmad-product-brief`                                                      | Capture strategic vision — best when your concept is clear                 | `product-brief.md`        |
-| `bmad-prfaq`                                                              | Working Backwards — stress-test and forge your product concept             | `prfaq-{project}.md`      |
+| `bmad-product-brief`                                                      | Capture strategic vision — best when your concept is clear                 | `brief.md` + `addendum.md`, plus any desired HTML or presentation output       |
+| `bmad-prfaq`                                                              | Working Backwards — stress-test your product concept customer-first             | `prfaq-{project}.md`      |
 
 ## Phase 2: Planning
 
@@ -67,13 +68,13 @@ Decide how to build it and break work into stories.
 
 | Workflow                              | Purpose                                    | Produces                    |
 |---------------------------------------|--------------------------------------------|-----------------------------|
-| `bmad-create-architecture`            | Make technical decisions explicit          | `architecture.md` with ADRs |
+| `bmad-architecture`            | Make technical decisions explicit          | `ARCHITECTURE-SPINE.md` is the spine by default but can hydrate to your desired output or presentation needs also |
 | `bmad-create-epics-and-stories`       | Break requirements into implementable work | Epic files with stories     |
 | `bmad-check-implementation-readiness` | Gate check before implementation           | PASS/CONCERNS/FAIL decision |
 
 ## Phase 4: Implementation
 
-Build it, one story at a time. Coming soon, full phase 4 automation!
+Build it, one story at a time. Phase 4 epic and story automation is now available also. So you can choose how you want to stay in the loop. You can choose the full flow, or go right to quick flow.
 
 | Workflow               | Purpose                                                                       | Produces                                             |
 |------------------------|-------------------------------------------------------------------------------|------------------------------------------------------|