docs(api): drop the internal markers from six published descriptions

Six operation descriptions in the API document opened with a version and
a bracketed letter-number code from the notes the work was planned in.
A client author reading the document has no way to know what B1 or B6
mean, and they mean nothing outside those notes. The version stays,
since it says when the operation appeared.

src/lib/openapi/routes/coach.ts

@@ -1604,7 +1604,7 @@ export const coachPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Insights"],
       summary: "List the caller's Coach goal / if-then plans",
       description:
-        'v1.21.3 (B1) — returns the durable plans the Coach has proposed for the caller, newest first, each decrypted on the fly. A plan is an "if-then" implementation intention tied to one metric, with an optional target. The Coach extractor writes a plan as `proposed`; only `PATCH /api/coach/plans/{id}` activates it. Pass `?status=` to filter to one lifecycle status, or `?scope=` for a named group (open = proposed + active + review_due, past = met + abandoned + reviewed, all = every non-deleted plan) — mutually exclusive. Both omitted returns the non-terminal set (proposed + active). Coach-gated (`requireModuleEnabled("coach")`); a disabled surface 403s. Auth via cookie or Bearer; the owner is always narrowed from the session, never the body. Undecryptable rows are omitted rather than failing the read.',
+        'v1.21.3 — returns the durable plans the Coach has proposed for the caller, newest first, each decrypted on the fly. A plan is an "if-then" implementation intention tied to one metric, with an optional target. The Coach extractor writes a plan as `proposed`; only `PATCH /api/coach/plans/{id}` activates it. Pass `?status=` to filter to one lifecycle status, or `?scope=` for a named group (open = proposed + active + review_due, past = met + abandoned + reviewed, all = every non-deleted plan) — mutually exclusive. Both omitted returns the non-terminal set (proposed + active). Coach-gated (`requireModuleEnabled("coach")`); a disabled surface 403s. Auth via cookie or Bearer; the owner is always narrowed from the session, never the body. Undecryptable rows are omitted rather than failing the read.',
       parameters: [
         {
           name: "status",
@@ -1645,7 +1645,7 @@ export const coachPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Insights"],
       summary: "Confirm or update a Coach plan's lifecycle",
       description:
-        "v1.21.3 (B1) — confirm a proposed plan (status proposed → active) or mark it met / abandoned, and optionally set / clear a review date. The body carries ONLY lifecycle fields — never the metric or the encrypted free text — so a client can change a plan's status but never inject or overwrite its prose. A foreign / unknown / already-deleted id maps to 404 (never 403) so the existence channel does not leak across accounts. Coach-gated. Auth via cookie or Bearer; the owner is narrowed from the session.",
+        "v1.21.3 — confirm a proposed plan (status proposed → active) or mark it met / abandoned, and optionally set / clear a review date. The body carries ONLY lifecycle fields — never the metric or the encrypted free text — so a client can change a plan's status but never inject or overwrite its prose. A foreign / unknown / already-deleted id maps to 404 (never 403) so the existence channel does not leak across accounts. Coach-gated. Auth via cookie or Bearer; the owner is narrowed from the session.",
       parameters: [
         {
           name: "id",
@@ -1688,7 +1688,7 @@ export const coachPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Insights"],
       summary: "Soft-delete one Coach plan",
       description:
-        "v1.21.3 (B1) — soft-deletes a single plan owned by the caller. An unknown / cross-user / already-deleted id is an idempotent no-op returning `{ deleted: false }`, never revealing whether the id exists under another account. Coach-gated. Auth via cookie or Bearer.",
+        "v1.21.3 — soft-deletes a single plan owned by the caller. An unknown / cross-user / already-deleted id is an idempotent no-op returning `{ deleted: false }`, never revealing whether the id exists under another account. Coach-gated. Auth via cookie or Bearer.",
       parameters: [
         {
           name: "id",
@@ -1760,7 +1760,7 @@ export const coachReminderPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Insights"],
       summary: "Create a Coach reminder manually",
       description:
-        "v1.22 (B6) — create a reminder from the ledger. `note` is the only writable content; `when` is the closed grammar (ISO date | +Nd / +Nw | a context cue) resolved into the trigger server-side; `metric` optional. The per-user cap returns 409 when the non-terminal set is full. Coach-gated. Auth via cookie or Bearer; the owner is narrowed from the session.",
+        "v1.22 — create a reminder from the ledger. `note` is the only writable content; `when` is the closed grammar (ISO date | +Nd / +Nw | a context cue) resolved into the trigger server-side; `metric` optional. The per-user cap returns 409 when the non-terminal set is full. Coach-gated. Auth via cookie or Bearer; the owner is narrowed from the session.",
       requestBody: {
         required: true,
         content: {
@@ -1796,7 +1796,7 @@ export const coachReminderPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Insights"],
       summary: "Confirm or update a Coach reminder's lifecycle",
       description:
-        "v1.22 (B6) — confirm a proposed reminder (→ active), mark it done / dismissed, or re-schedule via the closed `when` grammar (null clears the due moment). The body never carries the note text. A foreign / unknown / already-deleted id maps to 404 (never 403) so the existence channel does not leak. Coach-gated. Auth via cookie or Bearer.",
+        "v1.22 — confirm a proposed reminder (→ active), mark it done / dismissed, or re-schedule via the closed `when` grammar (null clears the due moment). The body never carries the note text. A foreign / unknown / already-deleted id maps to 404 (never 403) so the existence channel does not leak. Coach-gated. Auth via cookie or Bearer.",
       parameters: [
         {
           name: "id",
@@ -1839,7 +1839,7 @@ export const coachReminderPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Insights"],
       summary: "Soft-delete one Coach reminder",
       description:
-        "v1.22 (B6) — soft-deletes a single reminder owned by the caller. An unknown / cross-user / already-deleted id is an idempotent no-op returning `{ deleted: false }`. Coach-gated. Auth via cookie or Bearer.",
+        "v1.22 — soft-deletes a single reminder owned by the caller. An unknown / cross-user / already-deleted id is an idempotent no-op returning `{ deleted: false }`. Coach-gated. Auth via cookie or Bearer.",
       parameters: [
         {
           name: "id",