docs(P00): clarify — v1.15-Nova decisions D-102..D-112 locked

Full-autonomy CLARIFY: 11 decisions resolved. D-102..D-107 (high-judgment
scope) locked by user during planning: full rename w/ migration (AWS
resources, env vars, tag keys, SSM path, consumer path); illustrative
URLs updated; Nova tagline added alongside North Star; S&P theme
untouched. D-108..D-112 (CLARIFY): dual-read helper in core/env.py;
Checkov warn-then-hard across P2/P3; schema $id URLs rebranded; Lambda
defaults deferred to P4; flat-branch convention preserved.

---ci---
project: acdl
phase: 0
milestone: v1.15
status: clarify
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,9 +1,9 @@
 {
   "phase": 0,
-  "stage": "specify",
+  "stage": "research",
   "milestone": "v1.15",
   "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-07-30T00:00:00Z",
+  "updated_at": "2026-07-30T00:02:00Z",
   "milestone_complete": false
 }

.ciagent/PROJECT.md

@@ -965,4 +965,26 @@ on the v1.14.x line IS the release.
 | 2 | code-envvars-consumer-path | Rename acdl_tagging.py→nova_tagging.py; ACDL_*→NOVA_* dual-read; .acdl/→.nova/ contract path. |
 | 3 | ssm-tagkeys | SSM /acdl/→/nova/ + AWS tag keys acdl:*→nova:* with parallel-tag ABAC migration. |
 | 4 | aws-resource-migration | Rename all acdl-* AWS resources → nova-* with staged migration + runbook. |
-| 5 | final-review-ship | Multi-persona review + audit + remove dual-read fallback + milestone ship (merge to main, tag final patch = release). |
+| 5 | final-review-ship | Multi-persona review + audit + remove dual-read fallback + milestone ship (merge to main, tag final patch = release). |
+
+## Key Decisions (v1.15)
+
+Resolved at the CLARIFY stage (full autonomy — all within locked
+constraints or user-directed scope). New v1.15 decisions (numbered
+D-102+ to continue from v1.14's D-101). The high-judgment scope
+decisions (D-102..D-107) were locked in by the user during the planning
+conversation before execution; D-108..D-112 resolved at CLARIFY.
+
+| ID | Decision | Rationale | Outcome |
+|----|----------|-----------|---------|
+| D-102 | AWS resource names: full rename with migration. | User chose "Full rename with migration." All `acdl-*` AWS resources → `nova-*` including state bucket migration, DynamoDB data migration, IAM re-bootstrap, ECR re-push. Accepts downtime + multi-phase migration. | P4 implements the staged migration + rollback runbook. |
+| D-103 | Env var prefixes: full rename to `NOVA_*`. | User chose "Full rename to `NOVA_*`." All 21 `ACDL_*` prefixes → `NOVA_*` including `.env.secrets` (key names only, values stay) + Gitea secrets. | P2 renames + implements dual-read fallback; P5 removes fallback. |
+| D-104 | Tag keys + SSM path + consumer path: full rename all three. | User chose "Full rename all three." AWS tag keys `acdl:*`→`nova:*` (ABAC re-scope), SSM path `/acdl/`→`/nova/` (param migration), consumer path `.acdl/`→`.nova/`. | P2 (consumer path) + P3 (SSM + tag keys) implement. |
+| D-105 | External URLs: illustrative — update them. | User chose "URLs are illustrative — update them." Doc URLs (`github.com/acdl/...`, `git.cloudinit.dev/.../acdl*`) → `nova` for prose consistency. Real Gitea repo name (`release.gitea.repo`) stays `acdl`. | P1 updates doc URLs; config.json unchanged. |
+| D-106 | Nova tagline: add alongside existing North Star. | User chose "Add Nova tagline alongside existing North Star." Tagline "The New Dawn of DevSecOps — security as a seamless enabler of fast deployments" added to README header, deck title slides, `docs/vision.md`. Existing "consumers declare intent" framing retained. | P1 adds tagline; no prose removed. |
+| D-107 | S&P visual theme: leave untouched. | User chose "Leave S&P theme untouched." `sp-theme.json` (#D6002A red, Akkurat Pro) is client branding, not the Nova product brand. Only product-brand text (ACDL→Nova) changes in decks. | P1 edits deck text only; theme/CSS unchanged. |
+| D-108 | Dual-read fallback centralized in a new `core/env.py` helper. | No centralized env loader exists today (env vars read via scattered `os.environ.get("ACDL_*")`). A new `core/env.py` `get_env(name)` helper reads `NOVA_X` then falls back to `ACDL_X`, returning `None` if neither. All call sites migrate to the helper in P2; P5 removes the fallback. | P2 creates `core/env.py` + migrates call sites; P5 removes fallback. |
+| D-109 | Checkov custom rule `nova_tagging.py` warns during P2, hard-fails from P3. | During P2 (before tag-key migration), existing resources still carry `acdl:*` tags — a hard fail would break the regression gate. P2 rule warns on `acdl:*`; P3 (after parallel-tag + ABAC swap) hard-fails on `acdl:*` and enforces `nova:*`. | P2: warn mode; P3: hard mode. |
+| D-110 | Schema `$id` URLs (`https://acdl.cloudinit.dev/schemas/...`) → `https://nova.cloudinit.dev/schemas/...`. | These are illustrative schema identifiers (no real DNS resolution required for JSON-schema validation). Renamed for brand consistency in P1. Existing `$id` values in test fixtures updated. | P1 renames schema `$id` + fixture references. |
+| D-111 | Lambda env-var defaults (`CONTRACTS_TABLE` default `"acdl-contracts"`, etc.) → `nova-contracts`. | `core/lambda/contract_ingestor.py` has hardcoded `acdl-*` default table names. These become `nova-*` in P4 (resource migration). P2 changes the env-var name (`ACDL_*`→`NOVA_*`); P4 changes the default values to `nova-*`. | P4 updates Lambda defaults. |
+| D-112 | `nova` slug: no `project:` prefix on branches (single-project mode). | `config.json` has `projects[]` with one entry (slug `acdl`) but `git.branching_strategy` is `flat` and the established convention since v1.0 is flat branches (no `<slug>/` prefix). Nova rebrand does NOT change the branch prefix convention. Commit `---ci---` blocks use `project: acdl` (the config slug, unchanged). | Branches stay `milestone/v1.15-nova`, `phase/NN-*`; no `acdl/` or `nova/` prefix. |