fix(solicitation-create): drop labs-side workarounds; align with connect-labs#212 end-state

[jjackson]

DRAFT — holds until jjackson/connect-labs#212 ships. Do not merge before then.

Summary

Pre-implements the ACE-side cleanup for when connect-labs#212 lands. When the four labs-side items in #212 ship:

1. Atom inputSchema + deployed server validation align ({data: {...fields...}} envelope works as documented).
2. questions[].framing is a first-class structured field.
3. evaluation_criteria[].id documented as required in the atom inputSchema.
4. is_public: true AND status: active detail pages are unauthenticated.

...this PR drops the inline workarounds the prior ACE PR (#405) added.

Changes

• Step 6 simplified. The wire-shape fallback paragraph (flat-fields direct JSON-RPC) is removed; the MCP atom is called as documented with {program_id, data: {...solicitation fields...}}.
• questions[].framing emits as a structured field. The literal Why we're asking: <framing>\\n\\n<text> inline anchor convention in text is dropped. Labs's public-detail template renders framing as a muted preface; solicitation-review consumes the structured key. Empty framing is a [BLOCKER].
• evaluation_criteria[].id documented as REQUIRED in the criterion shape. The "server enforces it but inputSchema doesn't flag it" hedge is gone.
• Step 7a-bis added. The curl-the-public-URL rendered-layer verifier is restored on top of Step 7a's get_solicitation persistence-layer check. Together they catch both "labs persisted wrong shape" (7a) and "labs persisted right shape but template can't render it" (7a-bis).

Workflow

When connect-labs#212 ships:

1. Confirm the labs deploy: mcp__connect-labs__create_solicitation accepts a payload with structured framing, evaluation_criteria[*].id is documented in tools/list's inputSchema, public-detail URL renders for unauthenticated curls.
2. Convert this PR from draft to ready-for-review.
3. Auto-merge.
4. Re-run /ace:step solicitation-create malaria-itn-app/20260521-1400 (or the next opp) to verify end-to-end.

Cross-ref

• solicitation MCP: align proxy inputSchema with deployed validation; add framing + criterion.id as first-class connect-labs#212 — the four labs-side items this PR depends on.
• fix(solicitation-create): align with current labs reality + document ideal end-state (connect-labs#212) #405 — the prior PR that landed the current-reality workarounds.

🤖 Generated with Claude Code

[jjackson]

Superseded by #411. The premise of this draft was wrong — the labs maintainer's triage of connect-labs#212 showed that 3 of 4 'labs-side gaps' I filed were actually ACE reading a stale schema, not labs bugs. #411 ships the corrections directly to main instead of holding for a labs PR that won't be needed (#212 stays open only for the framing visual rendering / public-template ask; all four schema concerns are already met by the deployed labs MCP). The Step 7a-bis curl-the-public-URL verifier this draft planned to add is impossible — is_public: true does not mean anonymously readable, that's intentional labs behavior.