docs(changelog): finalize 3.3.0 + 3.3.1 entries for release

Drop the "(Unreleased)" tag from both [3.3.0] and [3.3.1] now that 3.3.1
is the upcoming release tag. Also reformat the deprecation table and drop
the BUG-15 prefix from the 3.3.1 fix bullet — the kanban id is internal.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Test

docs/changelog.md

@@ -2,13 +2,13 @@
 
 All notable changes to this project are documented here.
 
-## [3.3.1] (Unreleased)
+## [3.3.1]
 
 ### Fixed
 
-- **BUG-15** — `--fast` / `--fast-branch` no longer leave non-accelerable jobs (`phpunit`, `paratest`, `phpcpd`, `script`, `custom`, `composer-*`) running their full suites when the effective input set is empty (no staged files / no diff vs base). The skip is now universal: any job — accelerable or not, with or without `paths` declared — is skipped with reason `no changes to validate` when the mode produced no input. Restores parity with the v2.x contract ("nothing changed = nothing to run"). Implemented in [`FlowPreparer::filterJobForMode()`](../src/Execution/FlowPreparer.php#L244) via a new universal guard backed by [`ExecutionContext::isEffectiveSetEmpty()`](../src/Execution/ExecutionContext.php). Decision-table coverage in [`tests/Unit/Execution/FlowPreparerTest.php`](../tests/Unit/Execution/FlowPreparerTest.php) (`it_filters_jobs_per_mode_decision_table` with 20 rows).
+- `--fast` / `--fast-branch` no longer leave non-accelerable jobs (`phpunit`, `paratest`, `phpcpd`, `script`, `custom`, `composer-*`) running their full suites when the effective input set is empty (no staged files / no diff vs base). The skip is now universal: any job — accelerable or not, with or without `paths` declared — is skipped with reason `no changes to validate` when the mode produced no input. Restores parity with the v2.x contract ("nothing changed = nothing to run"). Implemented in [`FlowPreparer::filterJobForMode()`](../src/Execution/FlowPreparer.php#L244) via a new universal guard backed by [`ExecutionContext::isEffectiveSetEmpty()`](../src/Execution/ExecutionContext.php). Decision-table coverage in [`tests/Unit/Execution/FlowPreparerTest.php`](../tests/Unit/Execution/FlowPreparerTest.php) (`it_filters_jobs_per_mode_decision_table` with 20 rows).
 
-## [3.3.0] (Unreleased)
+## [3.3.0]
 
 ### New Features
 
@@ -125,12 +125,12 @@ GitHooks now declaratively watches RSS consumption per job and across the whole
 
 The four legacy camelCase keys inherited from v2 inside `jobs.<name>` are deprecated in favour of their kebab-case counterparts. Both forms keep working in v3.3.x; the camelCase forms will be **removed in v4.0**.
 
-| camelCase (deprecated) | kebab-case (canonical) |
-|---|---|
-| `executablePath` | `executable-path` |
-| `otherArguments` | `other-arguments` |
-| `ignoreErrorsOnExit` | `ignore-errors-on-exit` |
-| `failFast` | `fail-fast` |
+| camelCase (deprecated) | kebab-case (canonical)  |
+| ---------------------- | ----------------------- |
+| `executablePath`       | `executable-path`       |
+| `otherArguments`       | `other-arguments`       |
+| `ignoreErrorsOnExit`   | `ignore-errors-on-exit` |
+| `failFast`             | `fail-fast`             |
 
 - **Runtime warning**: every command that loads the config (`flow`, `flows`, `job`, `conf:check`, `system:info`) emits a `Deprecated: 'X' is renamed to 'Y'. Will be removed in v4.0.` line on stderr per camelCase key found.
 - **Structured output**: a new root-level `deprecations[]` block in JSON v2 (and `runs[0].properties.deprecations` in SARIF) lists each detection as `{job, oldKey, newKey, removalVersion, kind}`. As a side-effect, the JSON v2 also gains a root `warnings[]` field (always present, empty when no warnings) — useful for CI dashboards and AI consumers.