feat(linkedin-studio): specifics-bank store — lived-specifics inventory (fix #2 slice 1)

Fix #2 (kilde-så-draft) slice 1: the deterministic STORE half of the
lived-specifics bank — the operator's real, un-generatable raw material
(measured number / named-but-real case / what broke / contrarian opinion /
mind-change), so drafts start grounded instead of hollow (retning §3;
dream-spec "Lived-Specifics Extraction", the single biggest missing upstream
piece for the authenticity thesis).

scripts/specifics-bank/ (sibling to contract-gate, same tsx convention):
- src/types.ts — Specific/Bank schema (schemaVersion 1), un-generatable taxonomy
- src/bank.ts — pure store: normalizeContent, content-hash id (= dedupe key),
  load/save, addSpecific (dedupe + topicTag union on re-capture), queryByTopic
  (active-only, ranked by tag overlap then recency)
- src/cli.ts — query / add / list; default bank under
  ${LINKEDIN_STUDIO_DATA:-~/.claude/linkedin-studio}/specifics-bank/ so it
  survives plugin upgrades/reinstalls (M0 data-path seam)
- tests/bank.test.ts — 15/15 green; tsc clean
- README + .gitignore for node_modules/build

Content is stored verbatim; never AI-generated. The elicitation interview
(refuses vague answers; abstrakt/ekstern escape hatches) lands in slice 3
(/linkedin:newsletter Step 1.5). Forward-compatible with the profile-evolution
/ "second brain" architecture.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

scripts/specifics-bank/README.md

@@ -0,0 +1,65 @@
+# specifics-bank — the lived-specifics inventory (Fix #2, kilde-så-draft)
+
+A deterministic, topic-tagged store of the operator's **real, un-generatable raw
+material** — the specific measured number, the named (anonymized-but-real) case, the
+thing that actually broke, the unfashionable opinion privately held, the moment they
+changed their mind. The point (retning §3, dream-spec «Lived-Specifics Extraction»):
+**sourcing, not styling, is where authenticity is won.** Drafts must draw from real
+inventory instead of inventing plausible filler, so every downstream voice gate polishes
+grounded content, not hollow content.
+
+This is the **store half** (deterministic + tested). The **elicitation half** — a guided
+interview that refuses vague answers (escape hatches: mark a slot `abstrakt` or `ekstern`)
+— lives in the command layer (`/linkedin:newsletter` Step 1.5, slice 3). The bank never
+holds AI-generated lived experience; every `content` is the operator's own words.
+
+## Where the bank lives
+
+`${LINKEDIN_STUDIO_DATA:-$HOME/.claude/linkedin-studio}/specifics-bank/specifics-bank.json`
+
+It sits in the per-user data dir (M0 data-path convention), **outside** the plugin
+install, so it **survives plugin upgrades and reinstalls**. It is the first concrete
+tributary of the broader profile-evolution / "second brain" architecture.
+
+## Setup
+
+```bash
+cd scripts/specifics-bank && npm install
+```
+
+## Use
+
+```bash
+# Surface inventory the operator already has for an edition's topics
+node --import tsx src/cli.ts query --tags "saksbehandling,produktivitet"
+
+# Fold newly-elicited material back into the bank
+node --import tsx src/cli.ts add --type number \
+  --content "Saksbehandleren sparte to dager i uka." \
+  --tags "saksbehandling,produktivitet" --source "seres/05"
+
+# Inspect the whole bank
+node --import tsx src/cli.ts list
+```
+
+Flags: `--bank <path>` overrides the default location; `--json` emits machine output for
+`query`/`list`. `add` defaults `--verification` to `unverified` (numbers stay
+guilty-until-checked — regel 6/7) and `--source` to `manual`.
+
+`--type` ∈ `number | named-case | what-broke | contrarian | mind-change | other`.
+
+## Model
+
+- **Dedupe key** = `sha256(normalizeContent(content)).slice(0,12)` (lowercase + trimmed +
+  whitespace-collapsed). Re-capturing the same material under a new edition's topic does
+  **not** add a second entry — its `topicTags` are unioned in, enriching the record.
+- **Query** returns active specifics whose tags overlap, ranked by overlap (desc) then
+  recency (`capturedAt` desc); archived material is kept but never offered.
+- **Content is stored verbatim**; only the id is normalized.
+
+## Test
+
+```bash
+npm test     # node:test, deterministic (callers supply capturedAt)
+npm run build # tsc — must stay clean
+```